The sum of all two digit positive numbers which when divided by 7 yeild 2 or5 as remainder is :
1256
1465
1365
1356
Summation of series of natural numbers -
- wherein
Sum of first n natural numbers
From the concept ,
General term will be
total = 1356
1256
Option 2)1465
Option 3)1365
Option 4)1356
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