# Aptitude [TCS Placement]: Sample Questions 101 - 103 of 174

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## Question 101

Aptitude

### Question

MCQ▾

Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a. m and travels towards B at 20 km per hour speed. Another train starts from B at 8. a. m and travels towards A at a speed of 25 km per hour. At what time will they meet?

Choice (4)

a.

11 a. m

b.

9 a. m

c.

10 a. m

d.

All of the above

c.

### Explanation

• Distance between A and B is 110 km.
• One train starts from A towards B at 7 a. m with 20 kmph speed.
• Second train starts from B towards A at 8 a. m with 25 kmph speed.
• We are asked to find the time when both trains will meet.
• Let they meet x hrs after 7 a. m
• ‎Distance covered by A in x hrs
• ‎Distance covered by B in hrs = km

So, both trains will meet at 10 a. m

## Question 102

Aptitude
Edit

### Write in Short

Person travels to B from A with the speed of 4kmph and returns back to A with speed of 5 kmph. What is his average speed of journey?

### Explanation

• Person travels from A towards B with 4 kmph speed and returns back to A with 5 kmph speed.
• We are asked to find his average speed of journey.
• Average speed

Aptitude
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