RRB NTPC SAMPLE PAPER - ARITHMETIC - 32

Q1. A trader bought 10 kg of apples for Rs. 405 out of which 1 kg of apples were found to be rotten. If he wishes to make a profit of 10%, at what rate should he sell the remaining apples per kg?

(a) Rs. 45
(b) Rs. 49.50
(c) Rs. 50
(d) Rs. 51

Q2. If a : b = 7 : 9 and b : c = 15 : 7, then what is a : c?

(a) 5 : 3
(b) 3 : 5
(c) 7 : 21
(d) 7 : 15

Q3. By mistake, instead of dividing Rs. 117 among A, B and C in the ratio it was divided in the ratio of 2 : 3 : 4. Who gains the most and by how much?

(a) A, Rs. 28
(b) B, Rs. 3
(c) C, Rs. 20
(d) C, Rs. 25

Q4. A and B have money in the ratio 2 : 1. If A gives Rs. 2 to B, the money will be in the ratio 1 : 1. What were the initial amounts they had?

(a) Rs. 12 and Rs. 6
(b) Rs. 16 and Rs. 8
(c) Rs. 8 and Rs. 4
(d) Rs. 6 and Rs. 3

Q5. The incomes of A, B and C are in the ratio 3 : 7 : 4 and their expenses in the ratio 4 : 3 : 5. If A saves Rs. 300 out of an income of Rs. 2,400, the savings of B and C are

(a) Rs. 4.025 and Rs. 575
(b) Rs. 1.575 and Rs 2.625
(c) Rs. 2.750 and Rs. 1.525
(d) Rs. 3.725 and Rs. 1.525

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

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