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SSC Selection Post 2022 PYQ — Question 71

SSC Selection Post - Matriculation Level - 05 Aug 2022 - Shift 1 • Quantitative Aptitude • Q71

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Arjoo had a sum of Rs.5,00,000. She invested 40% of the money at 6% simple interest for a period of 4 years, while she invested the remaining part at the rate of 8% simple interest for a period of 5 years. How much total simple interest (in Rs.) did she receive?

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Correct answer: B

Explanation

The correct answer is Option 2 i.e. Rs.1,68,000.

Total money = ₹5,00,000

40% invested at 6% for 4 years

60% invested at 8% for 5 years

P1 = 40% of 5,00,000 = 2,00,000 Rs (first investment)

SI1 = P×R×T100\frac{P \times R \times T}{100}  = 2,00,000×6×4100\frac{2,00,000 \times 6 \times 4}{100} = ₹48,000

P2 ​= 60% of 5,00,000 = 3,00,000 Rs (second investment)

SI2 = P×R×T100\frac{P \times R \times T}{100}   = 3,00,000×8×5100\frac{3,00,000 \times 8 \times 5}{100} = ₹1,20,000

Total SI = ₹48,000 + ₹1,20,000 = ₹1,68,000