Question

All possible three digits even numbers which can be formed with the condition that if 5 is one of the digit, then 7 is the next digit, is

a. 5
b. 325
c. 345
d. 365

Answer 1

The three-digit even numbers meeting the condition "if 5 is one digit, then 7 is the next digit" are 325 and 345, making options b and c correct.

To form three-digit even numbers with the given condition, we need to consider all possible arrangements where 5 is one of the digits and 7 is the next digit. The last digit must be even, so the options are:

1. 5 _ 7 (the last digit can be 0, 2, 4, 6, or 8)

Let's evaluate the provided options:

a. 5: This is a two-digit number, not a three-digit number.

b. 325: This meets the condition. The last digit is 2 (even).

c. 345: This meets the condition. The last digit is 4 (even).

d. 365: This does not meet the condition because the last digit is 6 (odd).

Therefore, the correct options are b and c. So, the answer is:

b. 325

c. 345