SSC CPO QUANT REVISION BOOSTER QUIZ-2

Question 1:

Find the LCM of $\frac{2}{3}, \frac{4}{7}$ and $\frac{9}{13}$.

28

12

36

15

Question 2:

If the perimeter of a rectangle is 50 cm and its diagonal is 23 cm long, then what is the area of the rectangle?

48 cm$^2$

36 cm$^2$

50 cm$^2$

40 cm$^2$

Question 3:

In a class of 80 students, 40% are girls and the rest are boys. The average weight of the boys is 55.5 kg. If the average weight of all the students in the class is 54 kg, then the average weight (in kg) of the girls is:

51.75

52

50.25

51

Question 4:

If $P: Q=3: 2$, then find the ratio $\left(P^2-Q^2\right):\left(P^2+Q^2\right)$.

$5: 13$

$13: 5$

$10: 9$

$4: 9$

Question 5:

If by subtracting 35% of a number from the number the result is 26 , then what is the number?

250

13

35

40

Question 6:

A shopkeeper, in order to clear his old stock of computers, offers 18% discount. If the marked price of a computer is ₹ 7,500 , then find the selling price of a computer.

₹ 6300

₹ 6850

₹ 6150

₹ 6500

Question 7:

$3 \times 6+8-6 \div 3+9$ is equal to:

12

45

21

33

Question 8:

A man travels from $\mathrm{A}$ to $\mathrm{B}$ at a speed of $20 \mathrm{~km} / \mathrm{h}$ and returns by increasing his speed by $50 \%$. What is his average speed for both the trips?

$40 \mathrm{~km} / \mathrm{h}$

$48 \mathrm{~km} / \mathrm{h}$

$24 \mathrm{~km} / \mathrm{h}$

$36 \mathrm{~km} / \mathrm{h}$

Question 9:

The monthly salaries of A, B and C are in the ratio 7 : 8 : 11. If the monthly salary of B is ₹ 3,600 less than that of C, then what is the annual salary (in ₹) of A?

8,40,000

1,00,800

6,30,000

3,15,000

Question 10:

If the compound interest on a certain sum for two years at 10% per annum compounded annually is ₹ 3,360, then what is the sum?

₹ 16,500

₹ 16,000

₹ 15,000

₹ 15,500