1. 

If all the digits of the number '6379452', are arranged in ascending order from left to right, what will be the sum of the fourth digit from the left and second digit from the right after rearrangement?

A. 10
B. 12
C. 15
D. 13
E. 11

Answer: Option B

Explanation:

When the digits of the number '6379452' are arranged in ascending order,
then rearrangement will be 2 3 4 5 6 7 9

Now, fourth digit from the left = 5

Second digit from the right = 7

Sum of fourth and second digit = 5 + 7 = 12