A sum of money amounts to ₹7,800 in 3 years at 10% per annum simple interest. What is the sum?
A. ₹6000
B. ₹6200
C. ₹5460
D. ₹5800
A. ₹6000
B. ₹6200
C. ₹5460
D. ₹5800
Best answer
Answer: A. ₹6000
Answer: (A) ₹6000
In 3 years the sum grows by 30%, so the amount = 1.3 × P. P = 7800 ÷ 1.3 = ₹6000.
Trap: taking 30% off ₹7,800 gives ₹5,460.
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