RRB Group-D Model Paper 14 with answers for online practice

CONCEPT:
Subtracting twice the last digit of N from the remaining digits gives a multiple of 7.
CALCULATION:
According to the divisibility rule of 7
∵ 28 is divisible by 7
So, 34 – 2M = 28
⇒ M = 3
∴ The value of M is 3