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#6101 2018-10-08 10:37:18

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,039

Re: Oral puzzles

ganesh wrote:

Hi,

.

#4242. If the numerator of a fraction is increased by 300% and the denominator is increased by 500%, the resultant fraction is

. What was the original fraction?


“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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#6102 2018-10-08 15:07:21

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

The solution

is correct. Neat work, anonimnystefy!

#4243. In an examination out of 480 students, 85% of the girls and 70% of the boys passed. How many boys appeared in the examination, if total pass percentage was 75%?


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.

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#6103 2018-10-09 15:13:33

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4244. Fresh grapes contain 80% water, while dry grapes contain 10% water. If the weight of dry grapes is 500 kilograms, then what is the total weight when its is fresh?


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.

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#6104 2018-10-10 15:02:19

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4245. Tax on a commodity is reduced by 10%, total revenue remains unchanged. What is the percentage increase in its consumption?


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.

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#6105 2018-10-11 14:46:05

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4246. If 50% of a number is equal to three-fourth of another number, what is the ratio of 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.

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#6106 2018-10-12 15:33:14

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

.

#4247. Five-ninths of a number is equal to 25% of the second number. The second number is equal to one-fourth of the third number. The value of the third number is 2960. What is 30% of the first number?


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.

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#6107 2018-10-13 15:20:16

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

.

#4248. It is required to get 40% marks to pass an examination. A candidate scored 200 marks and failed by 8 marks. What were the maximum marks of that examination?


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.

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#6108 2018-10-14 15:49:11

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4249. When the price of rice is increased by 25 percent, a family reduces its consumption such that the expenditure is only 10 percent more than before. If 40 kilogram of rice is consumed by the family before, then find the new consumption of the family.


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.

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#6109 2018-10-15 15:34:56

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4250. In a school, the number of boys and girls are in the ratio 4:7. If the number of boys are increased by 25% and the number of girls are increased by 15%. What will be the new ratio of the boys and girls?


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.

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#6110 2018-10-16 15:00:29

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4251. Ram spends 50% of his annual income on household items, 20% of his income on buying clothes, 5% of his annual income on medicines and saves $11250. What is Ram's annual income?


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.

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#6111 Yesterday 15:44:11

ganesh
Administrator
Registered: 2005-06-28
Posts: 26,127

Re: Oral puzzles

Hi,

#4252. A man spends 28% of his salary on food. From the remaining, he spent 1/6th on rent and sends 3/8th to his mother. If he is left with $5280, what amount he sends to his mother?


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.

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