Age Problems

Q1: If a person is three times as old as his son today, and will be twice as old as his son after 13 years, what is his current age?

 
Q2: Two years ago, a man was four times as old as his son. Two years from now, he would be thrice as old as his son. Find his current age.

 
Q3: The sum of age of two brothers is 32 years. The older brother is 28 years younger than their father, who is thrice as old as his youngest son. Find their ages. 

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Distance and elevation

A person standing on a 48.5m tall platform was watching a tower 100m high, which is 50m away from him. If the height of the person is 150cms, at what angle is his head bended?

(i) 0°
(ii) 30°

(iii) 45°

(iv) 60°

Time and Clock 1

A clock is set right at 2pm. If it gains 1 minute every hour, then what is the true time when the clock indicates 7pm on the same day?

Note: 6:55 will not be the right answer, find the accurate answer.

Speed and Time 1

A boat take thrice as much time in going upstream as in going downstream. If the speed of boat while it is traveling upstream is increased by 5kms/hr, it would take the same amount of time as in going downstream. Find the speed of the boat.

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A bit of real maths I

In the given figure, ABCD is a quadrilateral circumscribing a circle. Find the value of x .

Circular Table 1

A, B, C, D, E, F, G and H are 8 friends sitting around a circular table facing the centre. B sits second to the left of E, who is third to the left of F. D sits third to the right of H, who is not an immediate neighbour of F. A sits third to the right of C, who sits second to the right of H. Who sits between E and D?

(i) Only C
(ii) Only D and B
(iii) Only H
(iv) Only B

Day of the week

Q: If 23 July,2011 was Saturday, then which day will be 22 July, 2012?

(i) Sunday
(ii) Friday
(iii) Saturday
(iv) Thursday

Collision of trains

Q: Two trains 200km apart are moving towards each other on the same track. Train A has a speed of 120km/hr, while Train B travels at 80km/hr. A bug starts flying from Train A and moves towards Train B at a speed of 160km/hr. On colliding with train B, it bounces back and starts moving towards Train A. On colliding with it, it bounces back, and repeats the process until both the trains collide. Find the distance traveled by the bug.

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