Quantitative Aptitude MCQ 4

1. In a two digit number, the digit at the unit's place is 1 less than twice the digit at the ten's place. If the digits at unit's and ten's place are interchanged, the difference between the new and the original number is less than the original number by 20. The original number is
59
23
25
47
2. The sets of English, Mathematics and science books containing 336,240,96 books respectively have to be stacked in such a way that all the books are stored subject-wise and height of each stack is the same. Total number of stacks will be
14
21
22
48
3. If the sum of the squares of three consecutive natural numbers is 110, then smallest of these natural numbers is :
8
6
7
5
4. The average age of 30 boys in a class is 15 yrs. One boy aged 20 yrs left the class, but two new boys came in his place whose ages differ by 5 yrs. If the average age of all the boys now in the class still remains 15 yrs , the age of younger newcomer is :
20 yrs
15 yrs
10 yrs
8 yrs
5. In a cricket match the total number of runs scored by Sachin, Binod and Sourav is 285. The ratio of the number of runs scored by Sachin and Sourav is 3:2 and that of the runs scored by Sourav and Vinod is also 3:2. The number of runs scored by Sachin in that match is
135
90
60
140
6. 40 litres of a mixture of milk and water contains 10% of water , The water to be added to make the water content 20% in the new mixture is
6 litres
6.5 litrea
5.5 litres
5 litres
7. A cloth merchant sold half of his cloth at 40% profit, half the remaining at 40% loss and the rest was sold at the cost price. In the total transaction his gain or loss will be
20% gain
25% loss
10% gain
15% loss
8. A sum of money amounts to Rs. 4,840 in 2 yrs and to Rs. 5,324 in 3 yrs at compound interest compounded annually , the rate of interest per annum is
10%
9%
11%
8%
9. A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C they completed the work in 3 days. How much is to be paid to C ?
375
400
600
800
10. A train 150m long, passes a pole in 15 seconds and another train of the same length travelling in the opposite direction in 12 seconds. the speed of the second train is
45 km/hr
48 km/hr
52 km/hr
54 km/hr
Score =
Correct answers: