In a row of boys, A is 20th from left and B is 16^{th} from right, interchange their position, then A becomes 30^{th} from left. How many boys are there in the row?

(a)

46

(b)

44

(c)

45

(d)

48

Question ID - 101347 :-

In a row of boys, A is 20th from left and B is 16^{th} from right, interchange their position, then A becomes 30^{th} from left. How many boys are there in the row?

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