RRB RPF RPSF SI and CONS Model Papers 8 with solutions

Question : 48 of 120

Marks: +1, -0

The radius of a wheel is 21 cm. How many revolution will it make in travelling 924 metres?

(

use

\π= {22}/{7} )

Solution:

(4) Circumference of wheel =

2πr

=2×{22}/{7} × 21 {cm}=132 {cm}

∴ No. of revolution =

= {92400}/{132}=700

Go to Question:

Prev Question

Next Question