Math, asked by Atiraj, 1 year ago

on what sum will the interest for 3 years at 4% per annum amount to rupees 300

Answers

Answered by pravinsir
0
given , P+I= 300

I = PNR /100

therefore , P + PNR /100 =300

P ( 1+ NR/100) = 300

N = 3
R=4

therefore , P ( 1+ 3 × 4/100) = 300

P ( 1+ 3/25) = 300

P ( 28/25) = 300

P = 300 × 25 / 28

P = 75 × 25 /7

P = 267.85 (268 approx)


or ----------------------------------------


A = P[1+R/100]^N

300 = P[1+4/100]^3

300 = P (26/25)^3

P = 300 ×25 ×25×25 /26×26×26

P =266.69 = 267 (approx)
Similar questions