Ratio, Percentage & Commercial Math — practice questions, page 7
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QuestionA shop's annual income rose by 20% in one year and then fell by x% in the next, leaving it 8%…QuestionThe average age of the 24 students in a class is 13 years. When the class teacher's age is…QuestionSudha buys 40 second-hand stools for ₹10000 and spends ₹2000 on repairing them. She sells 30 of…QuestionA school has 1650 students, and the number of boys is 20% more than the number of girls. The…Question₹5200 is shared among 15 men, 12 women and 20 children so that each woman gets twice as much as…QuestionThe cars, scooters and cycles parked outside a college are in the ratio 5 : 8 : 12. Next term the…QuestionWhile buying wheat from farmers a dealer uses a weight stamped 1 kg that really weighs 1250 g, so…QuestionA bank pays 8% per annum on a deposit, the interest being compounded quarterly. The effective…QuestionA bus normally runs its whole route at a steady 60 km/h. One day, after covering exactly half the…QuestionA tablet marked at ₹18000 was finally billed at ₹12240 after two successive discounts, the second…QuestionThe share of a bank's deposits held in savings accounts rose from 24% of all deposits to 30% of…QuestionA contractor puts 20 men on a stretch of village road, a job scheduled to take 30 days. After 12…QuestionA loan of ₹8400 taken at 10% per annum compound interest is to be cleared in two equal annual…QuestionA trader buys 250 kg of onions at one price. He sells 150 kg of them at a loss of 8% and still…QuestionA train running at a steady speed overtakes two men who are walking along the track ahead of it at…QuestionA 20% fall in the price of rice lets a family buy 4 kg more rice for the ₹800 they spend on it…QuestionRavindra borrows ₹5000 at 10% per annum compound interest. He repays ₹2000 at the end of the first…QuestionA store lets a shopper choose between a flat ₹450 off the bill and a discount of 15% on the bill.…QuestionNikhil's monthly income is 25% more than Owais's. Nikhil saves 20% of his income and Owais saves…QuestionA dealer sells two blankets at ₹4200 each. On the first he gains 25%; on the two taken together he…QuestionUnder a simplified scheme the first ₹250000 of a year's income is tax-free, the next ₹250000 is…QuestionDeepa covers 61 km in 9 hours, walking part of the way at 4 km/h and cycling the rest at 9 km/h.…QuestionAt a garment store a bill of ₹4000 attracts a 25% festival discount and a 10% loyalty discount. On…QuestionRakesh borrows ₹36000 at 9% per annum simple interest and at once lends the whole of it to a…QuestionAlloy A has copper and zinc in the ratio 4 : 1 and alloy B has them in the ratio 1 : 3. In what…
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