Question

$\huge\bold\green{\underline{\underline{QUESTION ¶}}}$

A rope makes 140 rounds of the circumference of a cylinder, the radius of whose base is
14 cm. How many times can it go round a cylinder with radius 20 cm ?

Solve this question with unitary method​

Answer 1

Answer:

length of rope=a

circumference of 1st cylinders base=2×pie×14

circumference of 2nd cylinders base=2×pie×20

that the rope goes around 2nd cylinder T time

you have 2 equation

a=140×2×pie×14

a=T×2×pie×20

solve for a and T, you will get T=98

Answer 2

Hope this will Help u Dear