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  • A four digit number of distinct digits is formed by using the digits . The number of such

A four digit number of distinct digits is formed by using the digits 2,3,4,5,6,7,8. The number of such numbers which are divisible by 25 , is

Option: 1

60


Option: 2

20


Option: 3

40


Option: 4

15


Answers (1)

best_answer

The number will be divisible by 25 if it ends in 25 or 75. Therefore, the required number of numbers is
\mathrm{\left({ }^{5} P_{2}\right)(2)=40}

Posted by

Gautam harsolia

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