RRB NTPC Mathematics 3

Question 1

The compound interest on ₹1,000 at 10% per annum for 2 years is:

Accepted Answer

₹210

Answer

₹200

Answer

₹190

Answer

₹220

Question 2

If 3x + 7 = 22, the value of x is:

Accepted Answer

5

Answer

3

Answer

7

Answer

4

Question 3

The perimeter of a rectangle is 60 cm and its length is 18 cm. Its width is:

Accepted Answer

12 cm

Answer

10 cm

Answer

14 cm

Answer

16 cm

Question 4

A shopkeeper gives a 10% discount on a marked price of ₹800. The selling price is:

Accepted Answer

₹720

Answer

₹700

Answer

₹750

Answer

₹680

Question 5

The HCF of 36 and 48 is:

Accepted Answer

12

Answer

6

Answer

18

Answer

24

Question 6

A work is completed by A in 10 days and by B in 15 days. Working together, they complete it in:

Accepted Answer

6 days

Answer

5 days

Answer

8 days

Answer

12 days