A man bought a sofa set for Rs. 6400, paid Rs. 400 in cash and decided to pay the rest of the amount in installments. If he paid the rest of the money in 15 installments. What sum of money had he paid in 4 installments?
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Rs. 400
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Rs. 1600
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Rs. 800
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Rs. 2000
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None of these
B
Correct answer
Explanation
Total money the man has to pay = Rs. 6400
Money paid in cash = Rs. 400
Total money he has to pay now = Rs. (6400 - 400) = Rs. 6000
Money paid in 15 installments = Rs. 6000
Money paid in 1 installment = Rs. 400
Therefore, money paid in 4 installments = Rs. (400 X 4) = Rs. 1600