Quantitative Aptitude

1. The HCF and LCM of two numbers are 18 and 378 respectively. If one of the numbers is 54, then the other number is

(1) 126

(2) 144

(3) 198

(4) 238

2. If the percentage of profit calculated on selling price of an article is 20, percentage of profit calculated on cost price will be

(1) 16

(2) 24

(3) 25

(4) 28

3. If the cost price of 10 chairs be equal to selling price of 16 chairs, then the loss percent is

(1) 9.6

(2) 17.5

(3) 20

(4) 37.5

4. Two numbers are in the ratio 3 : 5. If each number is increased by 10, then ratio becomes 5 : 7. The smaller number is

(1) 9

(2) 12

(3) 15

(4) 25

5. A seller marks his goods 30% above their cost price but allows 15% discount for cash payment. His percentage of profit when sold in cash is

(1) 10.5

(2) 15

(3) 9

(4) 8.5

6. A number is increased by 10% and then it is decreased by 10%. The net changed in the number is 

(1) no increase or decrease

(2) 2% decrease

(3) 1% increase

(4) 1% decrease

7. A man travelled a distance of 61 km in 9 hours partly on foot at the rate of 4 km/hr and partly on bicycle at the rate of 9 km/hr. The distance travelled on foot was

(1) 12 km

(2) 16 km

(3) 20 km

(4) 24 km

8. If the simple interests on a certain sum of money at 5% per annum for 4 years and 3 years differ by Rs. 42, the sum (in Rs.) is

(1) 840

(2) 820

(3) 800

(4) 760

9. An amount of Rs. 6,000 lent at 5% per annum compound interest for 2 years will become

(1) Rs. 600

(2) Rs. 6,600

(3) Rs. 6,610

(4) Rs. 6,615

10. The average age of 9 students and their teacher is 16 year. The average age of the first four students is 19 years and that of the last five is 10 years. The teacher’s age is

(1) 36 years

(2) 34 years

(3) 30  years

(4) 28 years 

Answers Key:
1. (1)
2. (3) 
3. (4) 
4. (3) 
5. (1)
6. (4) 
7. (2) 
8. (1) 
9. (4)
10. (2)