Question

If the interest on rs 2400 be more than the interest on rs 2000 by rs 60 in 3 years at the same rate percent.Find the rate

Answer 1

Answer:

Step-by-step explanation:

If,

P = Rs 2400, R = ?, T= 3 yrs

SI = P*R*T/100

= 2400*R*3/100

= 72*R. --------------(1)

again,

P = Rs 2000, R = ?, T= 3yrs

SI = P*R*T/100 + 60

= 2000*R*3/100 + 60

= 60*R + 60. ---------------(2)

Now,

(1) = (2)

72*R = 60*R + 60

72*R - 60*R = 60

12*R = 60

R = 6%

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