A sum of Rs. 800 becomes Rs. 956 in 3 years at a certain

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A sum of Rs. 800 becomes Rs. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will the same sum become in 3 years ?

According to question ,
S.I. = Amount - Principal = 956 – 800 = Rs. 156

∴ Rate =	Interest × 100
	Principal × Time

Rate =	156 × 100	= 6.5%
	800 × 3

New rate = (6.5 + 4)% = 10.5%

S.I =	Principal × Time × Rate
	100

SI =	800 × 3 × 10.50	= Rs. 252
	100

∴ Amount = Principal + SI = Rs.(800 + 252) = Rs.1052