2015 · Q15
The seven digit number 876p37q is divisible by 225. The values of p and qcan be respectively
Elementary MathematicsNumber System
- A9,0
- B0,0
- C0,5
- D9,5
Explanation
Divisibility by 225 = 9 x 25 needs the last two digits to be 75 (so q = 5) and the digit sum 36 + p to be a multiple of 9 (so p = 0 or 9). Both (p, q) = (0, 5) and (9, 5) satisfy this, so the item admits two correct options; the official key is (d). Hence option (d).