Question 1. 12 A <b>shopkeeper</b> Raju increased the price of a product by 37% due to which a customer found it difficult to purchase the required amount. But somehow the customer purchased only 68% of the required amount. What is the net percentage difference in the expenditure on that product ?
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Question 2. A box contains 7 blue balls, 10 white balls and 12 black balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either blue or white ?
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Question 3. There are two circles of different radii. The area of a square is 441 sq m, whose side is half the radius of the larger circle. The radius of the smaller circle is fourth-seventh of that of the larger circle. What is the circumference of the smaller circle?
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Question 4. Sujit Roy purchased a motarcycle for Rs. 78000. He sold it at a loss of 11 per cent. With this money he again purchased another bike and sold it at a profit of 12 per cent. What is his overall profit/loss ?
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Question 5. Gautam and Rahul start a business by investing a certain amount in the ratio of 11 : 15. Both of them invest for an equal period of time. At the end of the term, Rahul's share of profit is what per cent more than that of Gautam ?
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Question 6. Directions(Q.6 to Q.10 ): What should come in place of question mark (?) in the following number series.0 24 68 ? 222 336 520
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Question 7. 15 22.5 ? 112.5 337.5 1181.25
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Question 8. 20 42 107.5 325.5 ? 4575
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Question 9. 50 60 72 ? 103.68 124.416
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Question 10. 50 60 72 ? 103.68 124.416
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