Embibe Experts Solutions for Chapter: Time, Speed and Distance, Exercise 1: Exercise 1

A man goes to a certain place at a speed of $48 \mathrm{kmph}$. and returns at a speed of $32 \mathrm{kmph}$. Find the average speed of the journey.

A train runs from Howrah to Bandel at an average speed $20 \mathrm{kmph}$ and returns at an average speed of $30 \mathrm{kmph}$. The average speed (in $\mathrm{kmph}$) of the train in the whole journey is _____

Two rockets approach each other, one at $42,000 \mathrm{mph}$ and the other at $18,000 \mathrm{mph}$. They start $3256 \mathrm{miles}$ apart. How far are they apart (in $\mathrm{miles}$) $1 \min$ before impact?

A thief is noticed by a policeman from a distance of $200 \mathrm{m}$. The thief starts running and policeman chases him. The thief and the policeman run at the rate of $10 \mathrm{kmph} \& 11 \mathrm{kmph}$ respectively. What is the distance between them after $6 \min ?$

A and B take part in $100 m$ race. A runs at $5 kmph$. A gives B a start of $8 m$ and still beats him by $8$ seconds. The speed of B is:

In a km race, A beats B by $28$ meters or $7$ seconds. Finds A's time over the course(in seconds)?

    In a $500 m$ race, the ratio of the speeds of two contestants A and B is $3 : 4$. A has a start of $140 m$. Then, A wins by:

In a $100 \mathrm{m}$ race, $A$ can beat $B$ by $25 \mathrm{m}$ and $B$ can beat $C$ by $4 \mathrm{m}.$ In the same race, $A$ can beat $C$ by: