Railway Recruitment Board Mathematics — Question 661
Question
A sum becomes ₹1200 in 2 years at 10% simple interest. Find the principal.
- ₹900
- ₹1000
- ₹1100
- ₹1150
Correct answer
B — ₹1000
Explanation (English)
SI = P×R×T/100. Let P be principal. 1200 = P + P×10×2/100. 1200 = P(1.2). P = 1000
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