UGC NET Mock exams for Paper-I are Ready
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question #21
21. In the series 1, 6, 15, 28, 45, ............ the next term will be :

A
1 x 1 = 1
2 x 3 = 6;
3 x 5 = 15;
4 x 7 = 28;
5 x 9 = 45;
6 x 11 =66
.
1 x 1 = 1
2 x 3 = 6;
3 x 5 = 15;
4 x 7 = 28;
5 x 9 = 45;
6 x 11 =66

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NET NOVEMBER 2017 PAPER1