RS Aggarwal Class-7 Speed Distance and Time ICSE Maths Goyal

RS Aggarwal Class-7 Speed Distance and Time ICSE Maths Goyal Brothers Prakashan Chapter-12 Solutions. We provide step by step Solutions of Exercise / lesson-12 Speed Distance and Time for ICSE Class-7 RS Aggarwal Mathematics.

Our Solutions contain all type Questions with Exe-12 A, Exe-12 B(MCQ), Mental Maths to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

Board ICSE
Publications Goyal brothers Prakshan
Subject Maths
Class 7th
Chapter-12 Speed Distance and Time
Writer RS Aggrawal
Book Name Foundation
Topics Solution of Exe-12 A, Exe-12 B(MCQ), Mental Maths
Academic Session 2021-2022

RS Aggarwal Class-7 Speed Distance and Time ICSE Maths Goyal Brothers Prakashan Chapter-12 Solutions


-: Select Topic :-

Exe-12 A,

MCQ Exe-12 B,

MENTAL MATHS


Speed: The distance travelled by a body or vehicle in a unit time is known as its speed.

Relationship between Speed, Distance and Time

Distance = Speed x Time

Units

Each of Speed, Distance and Time can be expressed in different units:

Time: seconds(s), minutes (min), hours (hr)

Distance: (meters (m), kilometers (km), miles, feet

Speed: m/s, km/hr

So if Distance = km and Time = hr, then as Speed = Distance/ Time; the units of Speed will be km/ hr.

Important conversions

1 kilometer= 1000 meters = 0.6214 mile

1 mile= 1.609 kilometer

1 hour= 60 minutes= 60*60 seconds= 3600 seconds

1 km/hr = 5/18 m/s

1 m/s = 18/5 km/hr

Average Speed

Average Speed = (Total distance traveled)/(Total time taken)

 


Exe- 12 A,

RS Aggarwal Class-7 Speed Distance and Time ICSE Maths

Page 140

Question 1

Convert each of the following speeds into m/sec :

(i)  90 km/hr

(ii) 27 km/hr

(iii) 315 km/hr

(iv) 16.2 km/hr

Question 2

……………………..

……………………….

……………………….

Question 10

A car, running at 45 km /hr ………………. in 5 hour

Question 11

……………………………..

……………………………….

………………………….

Question 16

Find the time taken ……………………….. on the plateform.

Question 17

The length ……………………………. electric pole.

Question 18

A train 150 m …………………….. km per hour ?

Question 19

A train 120 m …………………….. 180 m long ?

Question 20

A train 760 m …………………… km per hour.



 


MCQ Exe-12 B,

Multiple Choice Questions

RS Aggarwal Class-7 Speed Distance and Time ICSE Maths

Page 140-141

 

Choose the correct option in each of the following :

Question 1

Which is the following is correct ?

(a) …………..

(b) ……………. 

(c) …………..

(d) ………………

Question 2

To convert a speed of km/hr into m/sec, we multiply it by

(a) …………..

(b) ……………. 

(c) …………..

(d) ………………

Question 3

…………………………

………………

………………………

Question 7

A car covers 108 km in first two hour and 90 km in the next one hour. Its average speed is

(a) …………..

(b) ……………. 

(c) …………..

(d) ………………

 


MENTAL MATHS

Question 1

Fill in the Blanks

–: End of RS Aggarwal Class-7 Speed Distance and Time Solutions :–

Return to- RS Aggarwal Solutions for ICSE Class-7 Goyal Brothers Prakashan


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