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

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## Question 101

### 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?

### Choices

Choice (4) | |
---|---|

a. | 11 a. m |

b. | 9 a. m |

c. | 10 a. m |

d. | All of the above |

### Answer

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

### Write in Short

Short Answer▾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

## Question 103

### Write in Short

Short Answer▾Interchange “MEASUREMENTS” the first with 2^{nd} letter, 3^{rd} with 4^{th} and so on. , then which will be the 12^{th} letter from right?

### Explanation

- Interchanging the letters of word ‘MEASUREMENTS’ like 1
^{st}and 2^{nd}, 3^{rd}and 4^{th}and so on, word will be EMSARUMENEST. - We are asked to find the 12
^{th}letter from right in the obtained word. - Counting from right, 12
^{th}letter is ‘E’ .