RRB NTPC SAMPLE PAPER - ARITHMETIC - 128

1. LCM of two numbers is 225 and their HCF is 5. If one number is 25, the other number will be :

(a) 5
(b) 25
(c) 45
(d) 225

2. 2/3 of three-fourth of a number is:

(a) 1/2 of the number
(b) 1/3 of the number
(c) 8/9 of the number
(d) 17/12 of the number

3. If we write 45 as sum of four numbers so that when 2 is added to first number, 2 subtracted from second number, third multiplied by 2 and fourth divided by 2, we get the same result, then the four numbers are:

(a) 1, 8, 15, 21
(b) 8, 12, 5, 20
(c) 8, 12, 10, 15
(d) 2, 12, 5, 26

4. Four numbers are in the ratio 1 : 2 : 3 : 4. Their sum is 16. The sum of the first and fourth number is equal to :

(a) 5
(b) 8
(c) 10
(d) 80

5. The numeraor and denominator of a fraction are in the ratio of 2 : 3. If 6 is subtracted from the numerator, the result is a fration that has a value 2/3 of the original fraction. The numerator of the original fraction is :

(a) 6
(b) 18
(c) 27
(d) 36

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

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