12, Vinay sold a plot of land for 143000, gaining 4%. For how much did he purchase the plot?
13. John sold his T.V. set for 14100, losing 6%. For how much did he purchase it?
14. On selling a bed for * 10800, a carpenter loses 10%. For what amount should he sell it to gain 5%
15. On selling an almirah for 20350, a man gains 10%. What per cent does he gain on selling the
same for 19610?
16. On selling a fan for 4700, a shopkeeper loses 6%. At what price must he sell it gain 6%?
17. Kamal sold two scooters for 19800 each, gaining 10% on the one and losing 10% on the other.
Find his gain or loss per cent on the whole transaction.
18. A buys an article for 650 and sells it to B at a profit of 20%. B sells it to C at a loss of 20%. What
does C pay for it?
Answers
Step-by-step explanation:
12) purchase price + profit = selling price
let purchase price be ₹100 then profit will be ₹4
selling price be ₹104
purchase price selling price
100 104
? 143000
purchase price = 143000×100/104=₹137500
13) purchase - loss = sale
let purchase be ₹100 loss will be ₹6
selling price will be ₹ 94
purchase price selling price
100 96
? 14100
purchase price = 14100×100/94=₹13558 approx.
14) purchase - loss = sale
let purchase be ₹100 loss will be ₹10
selling price will be ₹ 90
purchase price selling price
100 90
? 10800
purchase price = 10800×100/90=₹12,000
To gain gain of 5%
purchase price + profit = selling price
12000+ (12000×12%) = selling price
12000 + 1440 = selling price
selling price = 13440
Answer:
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