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· 1 Months ago

TIME (Question:1207270.0)

HOW HUNDRED'S PLACE BECOME IN 4 WAYS

Question:

How many three-digit numbers can be formed from the digits 2, 3, 5, 6, 7, and 9 which are divisible by 5 and none of the digits is repeated?

Options:
A)

5

B)

10

C)

15

D)

20

Solution:

Ans: (d)

One’s place in 1 way (only 5); ten’s place in 5 ways, and hundred’s place in 4 ways.

Number of ways= 1 × 5 × 4 = 20

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