1. A Rs 100 shirt is offered at 10% discount and a Rs 300 pair of trousers at 20% discount. If Pritam bought 1 shirt and 3 pairs of trousers, what is the effective discount (in %) he got?
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By: anil on 05 May 2019 01.45 am
Pritam bought 1 T shirt and 3 pairs of trousers SP of 1 t shirt = $$frac{100-10}{100} imes 100 = 90$$ SP of 3 pairs of trousers = $$3 imes frac{100-20}{100} imes 300 = 720$$
Total SP = 90+720 = 810 CP of 1 shirt and 3 trousers = 100 + 3(300) = 1000 discount = 1000 - 810 = 190 % discount = $$frac{190}{1000} imes 100 = 19$$% so the answer is option A.
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Total SP = 90+720 = 810 CP of 1 shirt and 3 trousers = 100 + 3(300) = 1000 discount = 1000 - 810 = 190 % discount = $$frac{190}{1000} imes 100 = 19$$% so the answer is option A.