Question

If a team deposit of RS 4000 earns in interest of Rs 2500 in 50 months find the rate of interest​

Answer 1

Given data :-

{ I = interest; P = Principal; T = Time duration; R = Interest rate ( in percentage )}

—› I = Rs 2500

—› P = Rs 4000

—› R = ?

—› T = 50 months

Solution:-

We use formula, of interest, { to find rate of interest }

—› I = { P × R × T }/100

—› 2500 = { 4000 × R × 50 }/100

—› 2500 = { 200000 × R }/100

—› 2500 × 100 = 200000 × R

—› 250000 = 200000 × R i.e.

—› R = 250000/200000

—› R = 25/20

—› R = 5/4

—› R = 1.25 %

Hence, the rate of interest is 1.25 %