1. A bakery bakes cake with the expectation that it
will earn a profit of 40% by selling each cake at marked price. But during the
delivery to showroom 16% of the cakes were completely damaged and hence could
not be sold. 24% of the cakes were slightly damaged and could be sold at 80% of
the cost price. The remaining 60% of the cakes soled at marked price. What is
the percentage profit in the whole transaction? [IBPS PO, (19.10.2014)]
(1) 3.2 (2) 2.4
(3) 2.8
(4) 4.2
(5)
3.6
Soln. Let the cost price = Rs 100
The selling price of 24% of cakes is = 80% of Rs 24
= Rs 19.2
The selling price of 60% of cakes is = 140% of Rs 60
= Rs 84
Total SP = Rs 19.2 + Rs 84 = Rs103.2
Profit percent = 3.2% Ans.
[Detailed Explanation: Let the cost price = Rs 100
Since 16% of cakes were damaged, so their SP = Rs 0
The CP of 24% of cakes is = Rs 24
The selling price of 24% of cakes is = 80% of Rs 24
= Rs 19.2
The CP of 60% of cakes is = Rs 60
But, this is sold at marked price, which is 40% above
the CP
So, the selling price of 60% of cakes is = 140% of
Rs 60 = Rs 84
Total SP = Rs 19.2 + Rs 84 = Rs103.2 and, CP = Rs 100
Profit percent = 103.2 – 100 = 3.2 So, Profit = 3.2% Ans.]
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