Quantitative Aptitude

1. Half of 100 articles were sold at a profit of 20% and the rest at a profit of 40%. If all the articles had been sold at a profit of 25%, the total profit would have been Rs. 100 less than earlier profit. The cost price of each article was

(1) Rs. 10

(2) Rs. 15

(3) Rs. 20

(4) Rs. 30

2. The marked price of a clock is Rs. 3200. It is to be sold at Rs. 2448 at two successive discounts. If the first discount is 10%. Then the second discount is 

(1) 5%

(2) 10%

(3) 15%

(4) 20%

3. A dealer marks his goods 30% above his cost price and then allows 15% discount on it. What is the cost price of an article on which he gains Rs. 84?

(1) Rs. 800

(2) Rs. 560

(3) Rs. 373.33

(4) Rs. 280

4. A shopkeeper wishes to give 5% commission on the marked price of an article but also wants to earn a profit of 10%. If his cost price is Rs. 95, then the marked price is

(1) Rs. 100

(2) Rs. 110

(3) Rs. 120

(4) Rs. 130

5. Krishnamurthy earns Rs. 15000 per month and spends 80% of it. Due to pay revision, his monthly income has increased by 20%, but due to price rise, he has to spend 20% more, His new savings are

(1) Rs. 3400

(2) Rs. 3000

(3) Rs. 4600

(4) None of these

6. Two numbers are respectively 121/2% and 25% more than a third number. The first number is how much per cent of the second number?

(1) 90

(2) 87.5

(3) 25

(4) 12.5

7. Population of a town increases 2.5% annually but is decreased by 0.5% every year due to migration. What will be the percentage of increase in 2 years?

(1) 5

(2) 4.04

(3) 4

(4) 3.96

8. 72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one of Biology or Mathematics and 40 students took both of these subjects, the total number of students in the class is

(1) 200 

(2) 240

(3) 250

(4) 320

9. A and B enter into partnership with capitals in the ratio 5 : 6. At the end of 8 months A withdraws his capital. They received profits in the ratio 5 : 9. B invested the capital for 

(1) 6 months

(2) 8 months

(3) 10 months

(4) 12 months

10. The compound interest on Rs. 6250 at 12% per annum for 1 year, compounded half-yearly is

(1) Rs. 772.50

(2) Rs. 772

(3) Rs. 672.50

(4) Rs. 672

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