Question

At what rate of interest will Rs. 800 amount to Rs. 920
in 3 years?
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Answer 1

$\huge{\sf{\underline{\red{Solution:-}}}}$

➤Given =

• principal = 920

• interest = 800

• time = 3 years

➤To Find =

• rate of interest

➤ We know that =

• P × N × R / 100 = SI

➤ Solution =

➜ PNR / 100 = SI

➜920 × 3 × R = 800

➜ R = 800 × 100 / 920 × 3

➜ R = 26 %

➤Answer = R : 26%