Some lollipops are bought at 11for a rupee and an equal number of other lollipops at 9 a rupee. If the whole lot is sold at 10 a rupee, find the gain or loss percent.
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1 costs 1/9 Rs. Total C.P (2 nos.) = 1/11 + 1/9 = 9+11/99 = 20/99 Rs.
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