RRB Junior Engineer (JE) Sample Paper: Mathematics-15

1. In the array 48392874362754869364, the number of instances where an even number is followed by two odd numbers is

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

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

(a) 10
(b) 11
(c) 12
(d) 20

3. If x is an even integer, which of the following is an odd integer ?

(a) 3x + 2
(b) 7x
(c) 8x + 5
(d) x3

4. When the integer n is divided by 6, the remainder is 3. Which of the following is not a multiple of 6?

(a) n – 3
(b) n + 3
(c) 2n
(d) 3n.

5. A worker was engaged for a certain number of days and was promised to be paid ` 1755. He remained absent for some days and was paid  ` 1365 only. What were his daily wages ?

(a) ` 182
(b) ` 195
(c) ` 185
(d) ` 192

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