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#5926 2018-05-31 14:04:56

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

.

#4080. If

find the value of
.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5927 2018-05-31 23:01:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

.

#4081. If

find the value of
.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5928 2018-06-01 14:14:18

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4082. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5929 2018-06-01 22:44:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4083. If

find the value of
.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5930 2018-06-02 14:22:43

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4084. If

find the value of SinAcosA.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5931 2018-06-02 21:25:52

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

.

#4085. If

with
what is the value of
?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5932 2018-06-03 14:20:10

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

.

#4086. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5933 2018-06-03 22:18:43

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4087. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5934 2018-06-04 14:50:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4088. The length of shadow of a tree is 16 meters when the angle of elevation of the sun is

. What is the height of the tree?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5935 2018-06-04 22:08:57

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4089. A pole is standing erect on the ground which is horizontal. The tip of the pole is tied tightly with a rope of length

meters to a point on the ground. If the rope is making 30 degrees with the horizontal, find the height of the pole.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5936 2018-06-05 14:01:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4090. A kite is flying at a height of 50 meters. If the length of string is 30 meters, find the angle of inclination of string to the horizontal ground is degree measure.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5937 2018-06-05 23:25:40

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

.

#4091. The ratio of the length of a rope and its shadow is

. Find the angle of elevation of the sun.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5938 2018-06-06 14:30:18

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4092. A vertical stick 12 centimeters long casts a shadow 8 centimeters long on the ground. At the same time, a tower casts a shadow 40 meters long on the ground. Find the height of the tower.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5939 2018-06-07 00:12:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4093. The angle of depression of a stone situated at a distance of 80 meters from the base of a pole is 30 degrees, find the height of the pole.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5940 2018-06-07 14:09:35

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4094. The angle of depression of a point situated at a distance of 70 meters from the base of a tower is 60 degrees. Find the height of the tower.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5941 2018-06-07 22:57:35

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4095. From the top of a light house at a height 20 meters above sea level, the angle of depression of a ship is

. Find the distance of the ship from the foot of the light house.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5942 2018-06-08 15:21:17

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4096. A telegraph post  gets broken at a point against storm and its top touches the ground at a distance 20 meters from the base of the post making an angle 30 degrees with the ground. What is the height of the post?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5943 2018-06-08 21:13:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4097. Find the distance between the points A(3,-7) and B(-5,8).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#5944 2018-06-09 12:35:46

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 2,000

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.

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#5945 2018-06-09 14:11:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

The solution #4097 is correct. Neat work, Monox D. I-Fly!

#4098. Find the distance of the point (-12,5) from the origin.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5946 2018-06-09 22:17:58

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4099. What is the distance between the points (4,0) and (12,0) on x-axis?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5947 2018-06-10 12:48:41

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 2,000

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.

Offline

#5948 2018-06-10 13:37:45

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

The

is correct. Neat work, Monox D. I-Fly!

#4100. Find the distance between the points (-8,0) and (3,0).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5949 2018-06-11 00:04:52

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4101. If the distance between the points A(-3,a-2) and B(5-a,a+2) is

units, find the value of a.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

#5950 2018-06-11 15:21:23

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,969

Re: Oral puzzles

Hi,

#4102. There are three points A(3x-2,x-4), B(x+3,2x+1), and C(-x,x+2) such that AB=BC. Find the value of x.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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