RRB NTPC SAMPLE PAPER - ARITHMETIC - 232

RRB NTPC SAMPLE PAPER - ARITHMETIC - 232

1. The volume of a right circular cylinder whose height is 40cm, and circumference of its base is 66 cm, is

(a) 55440 cm³
(b) 3465 cm³
(c) 7720 cm³
(d) 13860 cm³

2. ABC is a triangle with base AB. D is a point on AB such that AB = 5 and DB = 3. What is the ratio of the area of ∠ADC to the area of ∠ABC ?

(a) 3/2
(b) 2/3
(c) 3/5
(d) 2/5

3. A sum of Rs. 1600/- gives a simple interest of Rs. 252/­ in 2 years and 3 months. The rate of interest per annum is:

(a) 11/2%
(b) 8%
(c) 7%
(d) 6%

4. A sum of Rs.400/- amounts to Rs. 480/- in 4 years. What will it amount to if the rate of interest is increased by 2%?

(a) Rs. 484
(b) Rs. 560
(c) Rs. 512
(d) None of these

5. The marked price of a watch was Rs. 720/-. A man bought the same for Rs. 550.80, after getting two successive discounts, the first at 10%. What was the second discount rate?

(a) 12%
(b) 14%
(c) 15%
(d) 18%

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

1. (d) 2. (d) 3. (c) 4. (c) 5. (c)