A sum of money was lent at simple interest at a certain

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A sum of money was lent at simple interest at a certain rate for 3 years. Had it been lent at 2.5% per annum higher rate, it would have fetched ₹540 more. The money lent was :

If the sum lent be Rs. p, then

p × 2.5 × 3	= 540
100

p =	540 × 100	= ₹ 7200
	2.5 × 3

Second method to solve this question :
P₁ = P, R₁ = R, T₁ = 3
P₂ = P, R₂ = R + 2.5% , T₂ = 3 , S.I. = Rs. 540

∴ SI =	P₂ × R₂ × T₂ - P₁ × R₁ × T₁
	100

540 =	P × (R + 2.5%) × 3 - P × R × 3
	100

54000 = 7.5P

P =	540000
	75

P = ₹ 7200