Question

Find after how many your s.i becomes 81Rs.the rate of 25/4% interest for 72Rs.​

Answer 1

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$\large\mathcal\red{solution}$

let after t years 72 rs will become 81rs

now .....

=>81-72=(72×25×t)/400

=>3600/72×25=t

=>t=2 years

$\large\mathcal\red{hope\: this \: helps \:you......}$