Question

find the principal if the interest compounded at the rate 10% per anum for 2 years is Rs 630​

Answer 1

Answer:

Rs. 3150

Step-by-step explanation:

p = (S.I * 100) / (r*t)

p = (630*100) / (10*2)

p = Rs. 3150

Answer 2

Answer:

2200

Step-by-step explanation:

compound rate R 10% per annum

time 2 years

CI = Rs 430

let P with the required principal

A=(P+CI )

amount A = {P×[1+(R/100) ]^n}

(P+CI) ={P×[1+10/100]^2}

(P+430) =P[11/10 ] ^2

P- 1.21P =-430

0.21P = 430

hence, P = 430/0.21 = Rs 2200