Amar and Chaman Boro 2250 rupees and 2500 rupees respectively at the same rate of simple interest 3 whole 1 upon 2 years if Chaman paid rupees 140 more interested then find the rate of interest per annum
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Answer:
r= 16 %
Step-by-step explanation:
t= 7/2 yrs
interest paid by chaman = ptr/100
I = 2500×7/2× r/100
interest paid by Amar = 2250×7/2×r/100
2500×7/2×r/100 - 2250×7/2×r/100= 140
7/2 × r/100 ( 2500-2250) = 140
7/2 × r/100 × 250= 140
r = 140× 2/7 × 100 ×1/250
r = 16
r = 16/%
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