Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#8676 2020-03-17 00:35:52

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7727. Alan is twice as old as Simon. Five years ago, Alan was thrice as old as Simon. Find the present age of Simon.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8677 2020-03-19 00:05:44

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7728. The age of father is three times the age of his son at present. Four years hence, the ratio of the father and son becomes 13:5 respectively. What is the present age of the father?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8678 2020-03-21 00:23:37

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7729. One year ago, the ratio of Yamuna's and Ganga's ages was 6:7 respectively. Four years hence, this ratio would become 7:8. How old is Ganga now?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8679 2020-03-23 00:13:03

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7730. The age of Aaron and Albert is in the ratio 11:13 respectively. After 7 years, the ratio of their aes will be 20:23. What is the difference in years between their ages?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8680 2020-03-25 00:37:43

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7731. The ratio of the age of Roger and Martin is 4:5 and that of Martin and Andrew is 5:6. If sum of their age be 90 years, how old is Martin?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8681 2020-03-27 00:30:41

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7732. The ratio of the present age of Samson and Victor is 4:5. Six years hence, the ratio of their age will be 14:17. What will be the ratio of their age 12 years hence?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8682 2020-03-28 00:46:38

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7733. The age of Steve and Trevor are in the ratio 8:15 years respectively. After 9 years, the ratio of their ages will be 11:18. What is the difference in years between their ages?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8683 2020-03-29 00:10:12

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7734. Kate's present age is one and a half times her age, seven years ago. If her mother's age is 3 times the age of Kate, then find the mother's age.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8684 2020-03-31 00:38:13

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7735. Dolly is five times as old as Sally. Five years from now, Dolly would be twice as old as Rosy. If Rosy would be 30 years old after ten years, then find the present age of Sally.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8685 2020-04-02 00:51:19

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7736. Martin and Stanley are 35 years old and 40 years old respectively. After how many years would the ratio of their ages become 9:10?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8686 2020-04-04 00:33:12

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7737. Hubert is 40 years old and Robert is 60 years old. How many years ago was the ratio of their ages 3:5?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8687 2020-04-06 00:22:27

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7738. Present age of Richard and Samson is in the ratio 7:9 respectively. Five years ago, the ratio of their ages was 3:4. What will be Samson's age after 3 years from now?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8688 2020-04-08 00:15:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7739. Six years back, Samuel was half of that of Robin in age. Four years hence, the respective ratio of their ages would be 3:5. How old is Robin at present?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8689 2020-04-10 00:12:57

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7740. The ratio of the present age of a son and his father is 1:5 and that of his mother and father is 4:5. After 2 years, the ratio of the age of the son and that of his mother becomes 3:10. What is the present age of the father?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8690 2020-04-12 00:46:12

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7741. Kevin, Terry, and Aaron jointly invest $45000 in a business. If Kevin invested $5000 less than Aaron and Terry invests $5000 more than Aaron, find the share of Aaron out of total profit of $10,800.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8691 2020-04-14 00:42:56

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7742. Two numbers are in the ratio 7:8. If each number is decreased by 6, the ratio becomes 25:29. Find the numbers.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8692 2020-04-16 00:46:51

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7743. The age of Andrew and Vincent are in the ratio 7:5. If the difference between their age is 12 years, find the sum of their ages five years from now.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8693 2020-04-18 00:20:13

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7744. If 2x = 3y and 5y = 6z, then find x:z.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8694 2020-04-20 00:39:20

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7745. The ratio of weights Laura and Diana is 5:4. If the weight of Laura is increased by 5 and that of Diana is increased by 8, the new ratio becomes 7:6. Find the sum of the weights of both.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8695 2020-04-22 00:40:44

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7746. Find the ratio of third proportional to 5 and 15 and mean proportional to 25 and 49.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8696 2020-04-24 00:54:50

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7747. If

then find


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8697 2020-04-26 00:22:30

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7748. The ratio of speed of P, Q, and R is 2:3:5. If all the three cover equal distance then find the ratio of time taken by P, Q, and R respectively.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8698 2020-04-28 00:32:11

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7749. 'a' varies inversely as 'b' and 'a' varies directly as square root of 'c'. When a = 17, b = 2, and c = 289, find the value of 'a' when b = 2.5 and c = 25.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8699 2020-04-30 00:43:06

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

#7750. If A : B = 3 : 4, and B : C = 6 : 5, find C : A.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#8700 2020-05-02 01:18:51

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,221

Re: 10 second questions

Hi,

.

#7751. If x:y = 3:4 and y:z = 3:4, find


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

Board footer

Powered by FluxBB