MCQOPTIONS
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| 1. |
If R and S are different integers both divisible by 5, then which of the following is not necessarily true? |
| A. | R - S is divisible by 5 |
| B. | R + S is divisible by 10 |
| C. | R × S is divisible by 25 |
| D. | R2 + S2 is divisible by 5 |
| Answer» C. R × S is divisible by 25 | |