A man sells an article at 5% profit. If he had bought it at 5% less and sold it for Re 1 less, he would have gained 10%. The cost price of the article is
Answer: A Let CP of the article be Rs 100 Then, SP = Rs 105 New CP = Rs 95 and new SP = Rs 104.5 If he sells it for Rs 0.5 less, then CP = Rs 100. I he sells it for Re 1 less, then CP = 100/0.5 * 1 = Rs 200.
Q. No. 14:
A shopkeeper sold a TV set for Rs 17,940, with a discount of 8% and gained 19.6%. If no discount is allowed, then what will be his gain percent?
Answer: A CP of 20 articles = SP of x articles = 1 (say) CP of 1 article =1/20 , SP of 1 article = 1/x . gain % = (1/x - 1/20) / (1/20 ) = 25/100 (given) On solving we get x= 16.
Q. No. 16:
A person had deposited Rs 13,200 in a bank which pays 14% interest. He withdraws the money and invests in Rs 100 stock at Rs 110 which pays a dividend of 15%. How much does he gain or lose?
Answer: A
Interest earned on Rs 13200 @ 14% = Rs 1848Number of shares purchased = 13200/110 = 120Dividend earned by him on 120 shares @ Rs 15 per share = Rs 1800Net loss = 1848 - 1800 = Rs 48.
Q. No. 17:
A dairyman pays Rs 6.4 per litre of milk. He adds water and sells the mixture at Rs 8 per litre, there by making 37.5 % profit. The proportion of water to milk received by the customers is
Answer: B Let the quantity of milk purchased be x and quantity of water added be y. Then the ratio of water to milk be y:x. Then, the ratio of water to milk be y:x CP= 6.4x, SP= 8(x+y), profit % = 37.5% 8(x+y) = 6.4x * 1.375 8x+8y = 8.8x 8y = 0.8x x/y = 10/1 y:x = 1:10
Q. No. 18:
Of the 1000 inhabitants of a town, 60% are males of whom 20% are literate. If, of all the inhabitants, 25% are literate, then what % of the females of the town are literate.
Answer: C Number of males =600 Number of females =400 Number of literate males = 20% of 600 = 120. Total number of literate = 250 Total number of literate females = 130 % of female literate = 130/400 *100 = 32.5%