Question

At the same simple interest the actual 4 year interest rate is 1056 rupees and in 7 year interest rate is 1248 rupees. Find rate and principal.​

Answer 1

Answer:

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Step-by-step explanation:

Amount in 2 year. A = 1062

Amount in 3 1/2, A = 1183.50

3 1/2 year A -2 year A = 1 1/2 year interest

3/2 year interest =1183.50–1062 ie: 121.50

2 year interest = 121.50*2/3*2 ie: 162

Principle p = (Amount in 2 year )-(interest in 2 year)

P = 1062–162

P = 900 , T=2 SI = 162 R = ?

SI = PTR/100

R =SI*100/PT

R = 162*100/(900*2)

R = 9 %

Ans: Rate of interest R = 9 %

Answer 2

Answer:

answer for the given problem is given