The five-digit number 725yz is divisible by 15. What is the maximum possible value of the product of y and z?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 40.
If z = 5, the sum of the digits = 14 + y + 5 = 19 + y
If y = 8, 19 + 8 = 27 (divisible by 3)
8 × 5 = 40
Hence, the maximum possible value of the product of y and z is 40.