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## Campus Placements - Amazon - Quant sample question

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A and B invested INR90,000 and INR60,000 in a business at the start of an year. After 9 months C joins A and B, invests INR90,000 in the same business. At the end of that year, 10% of the B's profit goes to charity.If C got profit share of INR15000, how much money B donated to charity?
Responses (2)
• Sandeep Reddy Komatireddy

For first 9 months, A and B invested INR90,000 and INR60,000. Their investment did not change for next 3 months.
For first 9 months, C invested INR0. Next 3 months, C invested INR90,000.

Investment ratio of A, B, C in that year is 270,000:180,000:90,000 -- 27:18:9 --- 3:2:1

C's share in the profit is 1/6(total proft) = 15,000
Total profit = INR90,000

B's share in the profit = 2/6(total profit) = 1/3(90,000) = INR30,000

10% of the B's profit goes to charity so it is = 10/100*(30,000) = INR3,000

Money donated to charity by B = INR3,000

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• Tom Knickermann
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