Quantitative Aptitude (Numerical Ability)

Q. A milkman has 20 litres of milk. If he mixes 5 litres of water, which is free in 20 litres of pure milk. If the cost of pure milk is Rs. 18 per litre, then the profit of milkman, when he sells all mixture at cost price is -
1) 20%
2) 25%
3) 33%
4) 18%

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Q. Soniya, Rahul and Raman run around a circular track and they take 3 minutes, 5 minutes and 6 minutes respectively to complete one round. If they start running together at 11 : 45 AM, when will they meet again at the starting point?
1) 12 : 15 PM
2) 12 : 25 AM
3) 12 : 15 AM
4) 12 : 25 PM

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Q. Find the difference in the amounts of compound interest and simple interest if Rs. 2000 is invested at a rate of 10% compounded annually for 3 years and the same amount invested at simple interest of 9% per annum for the same time period -
1) Rs. 122
2) Rs. 62
3) Rs. 392
4) Rs. 209

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Q. A train coach manufacturing plant can manufacture 7 train coaches in 45 days. How many days will be required for manufacturing seven trains with nine coaches each?
1) 315 days
2) 405 days
3) 395 days
4) 365 days

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Q. Length, width and height of a room are 6 metre, 5 metre and 6 metre respectively. What is the total cost to whitewash the four walls and the ceiling Rs. 5 per square meter?
1) Rs. 660
2) Rs. 960
3) Rs. 1060
4) Rs. 810

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Q. If First December 1991 was the first Sunday, which date was the fourth Tuesday of December of 1991?
1) 17-12-91
2) 24-12-91
3) 27-12-91
4) 31-12-91

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Q. A certain sum of money in three years becomes thrice on compound interest. In how many years it will be 9 times?
1) 6 years
2) 8 years
3) 9 years
4) 12 years

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Q. A person bought apples at the rate of 25 apples in Rs. 20 and sold them at the rate of 20 apples in Rs. 25. Profit in percentage is -
1) 36.25%
2) 46.25%
3) 50%
4) 56.25%

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Q. The price of a shirt after 15% discount, is Rs. 119. What was the marked price of the shirt before discount -
1) Rs. 129
2) Rs. 140
3) Rs. 150
4) Rs. 160

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Q. The average of a,b,c is 20 and that of b,c,d is 25; if d=30, then the value of a is -
1) 25
2) 45
3) 30
4) 15

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