1. The units digit of the expression 25⁶²⁵¹ + 36⁵²⁸ + 73⁵⁴ is

1. 6
2. 5
3. 4
4. 0

2. The sum of the square of 3 consecutive positive numbers is 365. The sum of the numbers is

1. 30
2. 33
3. 36
4. 45

3. In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, then the dividend is

1. 4236
2. 4306
3. 4336
4. 5336

4. A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. Working together, they can do it in

1. 14 days
2. 13 days
3. 20 days
4. 15 days

5. The LCM of two numbers is 4 times their HCF. The sum of LCM and HCF is 125. If one of the numbers is 100, then the other number is

1. 5
2. 25
3. 100
4. 125

6. The difference between a discount of 35% and two successive discounts of 20% on a certain bill was Rs. 22. The amount of the bill was

1. Rs. 200
2. Rs. 220
3. Rs. 1,100
4. Rs. 2,220

7. In measuring the side of a rectangle, there is an excess of 5% on one side and 2% deficit on the other. Then the error percent in the area is

1. 3.3
2. 3.0
3. 2.9
4. 2.7

8. An equilateral triangle and regular hexagon have the same perimeter. The ratio of the area of the triangle to that of the hexagon is

1. 3: 2
2. 2 : 3
3. 1 : 2
4. 1 : 4

9. The average of three numbers is 135. The largest number is 195 and the difference between the order two is 20. The smallest number is

1. 65
2. 95
3. 105
4. 115

10. If I purchased 11 books for Rs. 100 and sold 10 books for Rs. 110, the percentage of profit per book sold is

1. 10
2. 11.5
3. 17.3
4. 21

11. Ratio between the monthly income of A and B is 9 : 8 and the ratio between their expenditures is 8 : 7. If they save Rs. 500 each, find A’s monthly income.

1. Rs.3,500
2. Rs.4,000
3. Rs.4,500
4. Rs.5,000