Question

A wheel has a radius of 28cm. How many revolutions will it make to travel 704m ?

Answer 1

Answer:

CIRCUMFERENCE OF CIRCLE=2*22/7*28=176

DISTANCE GIVEN 704M

REVOLUTIONS=DISTANCE GIVEN/CIRCUMFERENCE OF CIRCLE

704/176=4

4 REVOLUTIONS..

Answer 2

Answer:CIRCUMFERENCE OF CIRCLE = 2πR

==> CIRCUMFERENCE OF CIRCLE ==> 2×22/7×28

CIRCUMFERENCE OF CIRCLE ==> 176 CM

==> REVOLUTION IN 704 M

704 M==> 70400 CM

SO, TOTAL NUMBER OF REVOLUTION ==> 70400/176

===> 400 CM

ANSWER ==> 400 CM OR 4 M