A fruit-seller buys some oranges for ₹10/pieceand sells them at ₹12/piece, but 10 oranges get spoiled during transportation. If after selling them, he has the same amount of money for which he bought the oranges, how many of them did he buy?
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Answer:
Step-by-step explanation:
A. Loss per cent 19 1 % 81
L.C.M. of 5 and 4 is 20.
So, let he bought 20 apples in both cases. Case 1,
4 apples bought for ₹ 10.
:: 20 apples bought for (10 x 5) = ₹ 50. ...(i)
Case II,
5 apples bought for ₹ 10
20 apples bought for (10 x 4) = ₹ 40. ...(ii), From equation (i) and (ii), we get 40 apples bought for (50+40) = ₹ 90.
:.C.P. of one apple bought = (90/40) = 9/4
Case III,
9 apples sold for ₹ 20. :: S.P. of one apple = (20/9).
Since C.P. > S.P. (9/4 > 20/9), it means transaction resulted in loss.
Now, Required loss percent:
9 20 4 9 9 4 = x 100 %
(××100) 4 36 %
100 81 = 1%
de = 1 -% 81
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