Question

1+3+5+7+.........sum of first 16 odd positive integer is​

Answer 1

Step-by-step explanation:

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Answer 2

1+3+5+7+9+11+13+15+17+19=100

1,3,5,7,9,11,13,15,17,19

1)- 1,5,15,11,19

2)- 3,7,9,13,17

1)- 1*(5+15+11+19)=50

2)- 3*(9+13+17)-7=50