RRB Junior Engineer (JE) Sample Paper: Mathematics-8

1. What is the unit digit in (476 × 198 × 359 × 242)?

(a) 8
(b) 6
(c) 4
(d) 2

2. Which is smallest prime number ?

(a) 0
(b) 1
(c) 2
(d) 3

3. Three natural numbers are in the ratio 2 : 3 : 4. If the sum of squares of these numbers is 116, then determine the numbers.

(a) 2, 3, 4
(b) 4, 6, 8
(c) 6, 9, 12
(d) 8, 12, 16

4. Find the number of divisors excluding 1 and itself for the number 4225.

(a) 8
(b) 7
(c) 9
(d) 6

5. How many integers from 1 to 100 exist such that each is divisible by 6 and also has 6 as a digit.

(a) 6
(b) 4
(c) 5
(d) 8

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1(c), 2(c), 3(b), 4(b), 5(c)