RRB Junior Engineer (JE) Sample Paper: Mathematics-37

1. What is the difference between the greatest and the smallest five digit numbers formed using the digits 7,0,3, 4 and 2 without repeating the digits?

(a) 65672
(b) 53973
(c) 54672
(d) 65978

2. A boy had to do a multiplication. Instead of taking 35 as one of the multipliers, he took 53. As a result the product went up by 540. What is the new product ?

(a) 1590
(b) 1450
(c) 1550
(d) 1420

3. Five bells begin to toll together and toll respectively at intervals of 6, 7, 8, 9 and 12. How many times they will toll together in one hour, excluding the one at the start?

(a) 3
(b) 5
(c) 7
(d) 9

4. Among how many students, 175 bananas and 105 oranges can be equally divided ?

(a) 5
(b) 7
(c) 35
(d) All of these

5. The least perfect square which is divisible by each of the numbers 12, 15, 20 and 24 is

(a) 3600
(b) 4900
(c) 6400
(d) 8100

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