Quantitative Aptitude (Numerical Ability)

Q. In one litre of mixture of alcohol and water, water is 30%. The amount of alcohol that must be added to the mixture, so that the part of water in the mixture becomes 15% is -
1) 1.5 litre
2) 0.5 litre
3) 2 litre
4) 1 litre

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Q. Find the wrong number in this given series: 12 18 30 48 72 126 204
1) 18
2) 72
3) 126
4) 48

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Q. A started a business by investing Rs. 12, 000. After 7 months B joined him with some money. After a year total profit was equally shared between the two. Find the amount invested by B.
1) Rs. 20,880
2) Rs. 24,400
3) Rs. 12,800
4) Rs. 28,800

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Q. Find the wrong number in the given series: 12, 13, 28, 87, 351, 1765, 10596
1) 87
2) 1765
3) 12
4) 351

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Q. A train 200 m long moving at the speed of 25 m/ sec, crosses a man moving at a speed of 5 m/ sec in the same direction. What will be the time taken by train to cross the man?
1) 18 sec
2) 8 sec
3) 10 sec
4) 12 sec

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Q. Find the wrong number in the given series: 212, 242, 278, 324, 392, 482, 602
1) 212
2) 324
3) 392
4) 602

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Q. A boat sails 15 km of a river towards upstream in 5 hours. How long (in hours) will it take to cover the some distance down-stream, if the speed of river is one-fourth the speed of the boat in still water?
1) 1.8
2) 3
3) 4
4) 5

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Q. The stream flows at 1 kmph. A mother boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat (in kmph) in still water is -
1) 8
2) 6
3) 7.5
4) 5.5

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Q. What would be the value of 3 x 0.3 x 0.03 x 0.003 x 30 ?
1) 0.0000243
2) 0.000243
3) 0.00243
4) 0.0243

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Q. In a class of some students standing in a straight line, the position of Ramu is 11th from left end and 41st from right end. How many students are there in the class?
1) 50
2) 51
3) 52
4) 53

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