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| 1. |
Find the remainder when 1661 + 1551 + 1441 + 1331 + 1221 is divided by 20. |
| Answer» SOLUTION :The remainders when 1666,1551,1441,1331,1221 are divided by 20 are 1,11,1,11,1.So the requried REMAINDER can be obtained just by DIVIDING 1+11+1+11+1(=25) by 20. Hence the requried remainder is 5. | |