# Speed and Time – Quiz 1

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# Speed and Time – Quiz 1

### Introduction

Speed and Time is one of important topic in Quantitative Aptitude Section. In Speed and Time – Quiz 1 article candidates can find a question with an answer. By solving this question candidates can improve and maintain, speed, and accuracy in the exams. Speed and Time - Quiz 1 questions are very useful for different exams such as IBPS PO, Clerk, SSC CGL, SBI PO, NIACL Assistant, NICL AO, IBPS SO, RRB, Railways, Civil Services etc.

### Q1

The speed of a car increases by 2 km after every one hour. If the distance travelling in the first one hour was 35 km. what was the total distance traveled in 12 hours?
A. 456 km B. 482 km C. 552 km D. 556 km

C
Total distance traveled in 12 hours = (35 + 37 + 39 + .....up to 12 terms)
This is an A.P with first term, a=35, number of terms,
n= 12, d=2.
Required distance = $\frac{12}{2}$ [2 x 35 + {12 - 1) x 2]
= 6 (70 + 23)
= 552 kms.

### Q2

A person crosses a 600 m long street in 5 minutes, What is his speed in km per hour?
A. 3.6 km/hr B. 7.2 km/hr C. 8.4 km/hr D. 10 km/hr

B
Speed = $(\frac{600}{5 \times 60}) \frac{m}{sec} = 2 \frac{m}{sec} = 2 \times (\frac{18}{5}) \frac{km}{hr} = 7.2 \frac{km}{hr}$

### Q3

How long will a boy take to run round a square field of side 35 meters, If he runs at the rate of 9 km/hr?
A. 50 sec B. 52 sec C. 54 sec D. 56 sec

D
Speed = 9 km/hr = 9 x ($\frac{5}{18}$) m/sec = $\frac{5}{2}$ m/sec
Distance = (35 x 4) m = 140 m.
Time taken = (140 x $\frac{2}{5}$) sec= 56 sec

### Q4

A man takes 6 hours 15 minutes in walking a distance and riding back to the starting place. He could walk both ways in 7 hours 45 minutes. The time taken by him to ride both ways, is
A. 4 hours B. 4 hours 30 minutes C. 4 hours 45 minutes D. 5 hours

C
Time taken in walking both ways = 7 hours 45 minutes .....(i)
Time taken in walking one way and riding back= 6 hours 15 minutes .....(ii)
By equation (ii) $\times$2 - (i), we have
Time taken to man ride both ways, = 12 hours 30 minutes - 7 hours 45 minutes = 4 hours 45 minutes

### Q5

A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is?
A. 35.55 km/hr B. 36 km/hr C. 71.11 km/hr D. 71 km/hr

C
Total time taken = $(\frac{160}{64} + \frac{160}{8}) hrs = \frac{9}{2} hrs$
Average speed = $(320 \times \frac{2}{9})$ km.hr
= 71.11 km/hr.