How many 4-digit even numbers are possible such that if one of the digits is 5, the next/succeeding digit to it should be 7?
Choose the correct choice from the following options:	A) 5	B) 305	C) 365	D) 50	E) 495
5700, 5710,......5798, so total 50. Hence Option 50.
<result>D</result>
How many 4-digit even numbers are possible such that if one of the digits is 5, the next/succeeding digit to it should be 7?