Quantitative Aptitude (Numerical Ability)

Q. A cylinderical container of 32 cm height and 18 cm radius is filled with sand. Now all this sand is used to form a conical heap of sand. If the height of the conical heap is 24 cm, what is the redius of its base ?
1) 12 cm
2) 24 cm
3) 36 cm
4) 48 cm

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Q. The simple interest on a sum for 5 years is two fifth of the sum. The rate of interest per annum is -
1) 0.1
2) 0.08
3) 0.06
4) 0.04

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Q. The average of marks of 17 students in an examination was calculated as 71. But it was later found that the mark of one student had been wrongly entered as 65 instead of 56 and another as 24 instead of 50. The correct average is -
1) 70
2) 71
3) 72
4) 73

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Q. If a shop keeper marks his goods for a certain amount so as to get 25% gain after allowing a discount of 20%, then his marked price is -
1) Rs. 156.25
2) Rs. 146.25
3) Rs. 166.25
4) Rs. 150.25

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Q. The average weight of 3 men A, B and C is 84 Kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. What is the weight of A ?
1) 70 kg
2) 72 kg
3) 75 kg
4) 80 kg

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Q. In an exam, the average marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in Maths was -
1) 50
2) 52
3) 60
4) 74

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Q. A sum of Rs 15525 is divided among Sunil, Anil and Jamil such that if Rs 22, Rs 35 and Rs 48 be diminished from their shares respectively, their remaining sums shall be in ratio 7:10:13. What would have been the ratio of their sums if Rs 16, Rs 77 and Rs 37, respectively were added to their original shares?
1) 9:13:17
2) 18:26:35
3) 36:52:67
4) None of these

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Q. In a coloured picture of blue and yellow colour, blue and yellow colour is used in the ratio of 4:3, respectively. If in upper half, blue : yellow is 2:3, then in the lower half blue : yellow is -
1) 1: 1
2) 2: 1
3) 26 : 9
4) 9 : 26

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Q. There are three bottles of mixture of syrup and water of ratios 2:3, 3:4 and 7:5. 10 Litres of first and 21 Litres of second bottles are taken. How much quantity from third bottle is to be taken so that final mixture from three bottles will be of ratios 1:1.
1) 25 Litres
2) 20 Litres
3) 35 Litres
4) 30 Litres

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Q. In a college union, there are 48 students. The ratio of the number of boys to the number of girls is 5:3. The number of girls to be added in the union, so that the number of boys to girls in 6:5 is -
1) 6
2) 7
3) 12
4) 17

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