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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

A number of 4 different digits is formed by using the digits

1,2,3,4,5,6,7

such that number formed is multiple of 25 , is

12 x+y

, then find the value of value of

x+y

.

View answer and explanation

Correct option: A

7

Option A (7) is correct because the number of 4-digit multiples of 25 formed using the digits 1 to 7 is 40, and solving 12x + y = 40 gives x + y = 7.

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