Question

in how many years does the sum of 1200 became 1800 at the rate of simple intrest of 5% per annum​

Answer 1

Answer:

Given

Radius (r)=35cm

π=22/7.

circumference of a circle =2πr

=2.

7

22

.35

=44×5

=220.cm

∴ circumference of a circle is 220cm.

Answer 2

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10 years

10 yearsIt takes 10 years for sum of ₹ 1200

become ₹ 1800

at the rate of simple interest of 5% per annum