KEAM 2016 Math Paper

Question : 22 of 120

Marks: +1, -0

Sum of the series 1(1) + 2 ( 1 + 3) + 3 (1 + 3 +5) + 4 (1 + 3 + 5 + 7) + ….+ 10 (1 + 3 + 5 + 7+ …+ 19) is equal to