Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 7 Answered

How many times a wheel of radius 28cm must rotate to go 345m?
 
Asked by ramchsai_65 | 12 Feb, 2016, 05:31: PM
answered-by-expert Expert Answer

Given, Radius of wheel = 28cm

Distance to be covered = 345 m = 34500 cm.

Therefore, cirumference of the wheel = 2 πr

equals 2 cross times 22 over 7 cross times 28

= 176 cm

Number of rotations required to cover 176 cm = 1

Then, number of rotations required to cover 1 cm = 1 over 176

Therefore, number of rotations needed to cover 34500 cm = 1 over 176 cross times 34500 space equals space 196.02 space approximately equal to space 196 space  

Answered by Keravi Thanani | 12 Feb, 2016, 06:12: PM
CBSE 7 - Maths
Asked by amtiku.singh41 | 06 Jan, 2024, 09:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by akshath400 | 28 Dec, 2022, 03:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by qwershdshdjd | 04 Feb, 2022, 10:25: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by mahipals723.MS | 23 Mar, 2021, 08:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by manishamlani2152 | 22 Jan, 2021, 04:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by mishravishwajeetsujeet | 09 Nov, 2020, 09:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by minayadav866 | 09 Sep, 2020, 10:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by anithaanitha99315 | 18 Aug, 2020, 07:31: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×