Ratio, Percentage & Commercial Math — practice questions, page 11
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QuestionA jeep is hired for a 300 km run at ₹9 per km. Vinod rides the whole 300 km, Wasim only the first…QuestionA stationer buys notebooks at ₹40 each. He has been selling them at ₹60 and moving 300 a month. He…QuestionA vat holds 60 litres of sugarcane juice in which the sugar makes up 10% of the volume. How many…QuestionA bank card takes 8% off a restaurant bill at the counter, and the bank afterwards credits back 5%…QuestionTwo sums of ₹40000 each are invested on the same day — one at 20% per annum compounded annually…QuestionFarida cycles from her home to the mandi at 12 km/h and comes back along the same road at 8 km/h.…QuestionTomorrow a delivery truck will run a route 20% longer than today's, and it will run 10% faster…QuestionA garment unit's monthly wage bill is the number of workers × the days worked in the month × the…QuestionOn one day a furniture dealer sold a sofa at a loss of 12% and an armchair that had cost him ₹9000…QuestionTwo shops stock the same water purifier. Shop A has marked it ₹3200 and sells it at 25% off. Shop…QuestionA trader buys 250 kg of potatoes at ₹16 per kg and pays ₹800 to have them brought to his shop.…QuestionThe retail price of a bag of fertiliser is capped by law at ₹1350. A dealer buys each bag at ₹1000…QuestionOn a deposit earning 10% per annum compounded annually, the interest credited in the third year is…QuestionA car returns 18 km per litre in city traffic and 24 km per litre on the highway. On a 360 km…QuestionA bakery's cookie recipe uses flour, sugar and butter in the ratio 5 : 3 : 2 by weight. The bakery…QuestionIn a consignment of 800 bulbs, 6% are found defective on testing. One-third of those defective…QuestionA wholesaler's invoice shows goods worth ₹18000 plus ₹2000 of freight, and he offers 10% off. If…QuestionIn a furniture workshop the carpenters and the helpers are in the ratio 4 : 7, and the helpers and…Question₹6400 is lent at simple interest for a number of years that is numerically equal to the rate…QuestionIn a town 20% of the people are men, 40% are women and the rest are children. If there are 12000…QuestionAn appliance dealer sold a refrigerator costing ₹18000 at a profit of 15% and, the same week, a…QuestionMahesh can walk from his house to the railway station in 30 minutes, and a cycle rickshaw covers…QuestionThree friends run a catering service and share the profit in the ratio 5 : 3 : 2, Ashok taking the…QuestionThe price of an article is first increased by 20% and then decreased by 20%. The net change is a…QuestionIf x : y = 2 : 5 and y : z = 3 : 4, then x : z equals:
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