The angle of elevation of the sun, when the length of the shadow of a tree is 3√3 times the height of tree, is :

1.  30 degree

2.  45 degree

3.  60 degree

4.  9 degree

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4
Correct Answer :

30 degree


Explanation :
No Explanation available for this question

From a point C on a level ground, the angle of elevation of the top of a tower is 30 degree. If the tower is 100 meter high, find the distance from point C to the foot of the tower.

1.  170 meter

2.  172 meter

3.  173 meter

4.  167 meter

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4
Correct Answer :

173 meter


Explanation :
No Explanation available for this question

A man standing at a point C is watching the top of a tower, which makes an angle of elevation of 30 degree. The man walks some distance towards the tower to watch its top and the angle of elevation become 60 degree. What is the distance between the base of the tower and point C.

1.  43√meter

2.  23√meter

3.  3√meter

4.  Data is inadequate

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4
Correct Answer :

Data is inadequate


Explanation :
No Explanation available for this question

A man is watching form the top of the tower a boat speeding away from the tower. The boat makes the angle of depression of 45 degree with the man's eye when at a distance of 60 metres from the tower. After 5 seconds the angle of depression becomes 30 degree. What is the approximate speed of the boat, assuming that it is running in still water

1.   22 Km/Hr

2.  28 Km/Hr

3.  32 Km/Hr

4.  36 Km/Hr

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4
Correct Answer :

32 Km/Hr


Explanation :
No Explanation available for this question

The Top of a 15 metre high tower makes an angle of elevation of 60 degree with the bottom of an electric pole and angle of elevation of 30 degree with the top of pole. Find the height of the electric pole.

1.  7 metre

2.  8 metre

3.  9 metre

4.  10 metre

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4
Correct Answer :

9 metre


Explanation :
No Explanation available for this question

In a throw of coin what is the probability of getting head.

1.  1

2.   2

3.  1/2

4.  0

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4
Correct Answer :

1/2


Explanation :
No Explanation available for this question

Two unbiased coins are tossed. What is probability of getting at most one tail

1.  12

2.  13

3.  32

4.  34

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4
Correct Answer :

34


Explanation :
No Explanation available for this question

Three unbiased coins are tossed, what is the probability of getting at least 2 tails

1.  1/3

2.  1/6

3.  1/2

4.  1/8

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4
Correct Answer :

1/2


Explanation :
No Explanation available for this question

In a throw of dice what is the probability of getting number greater than 5

1.  1/2

2.  1/3

3.  1/5

4.  1/6

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4
Correct Answer :

1/6


Explanation :
No Explanation available for this question

What is the probability of getting a sum 9 from two throws of dice.

1.  1/3

2.  1/9

3.  1/12

4.  2/9

View Answer  
4
Correct Answer :

1/9


Explanation :
No Explanation available for this question
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