Let number of balls = (10 + 12) = 22 Number of white balls = 12 P (drawing a white ball) = 12/22 = 6/11
147 490 707 831 895 922 930
...120, 126, 135, 145, 170, 200
Find the wrong number in given number series.
14, 24, 63, 236, 1255, 6894.
132, 144, 162, 186, 216, 255, 294
3, 8, 28, 88, 258, 648
2, 4, 16, 48, 240, 1440, 10080
15, 32, 64, 134, 270, 542
131, 132, 140, 166, 231, 356
192 576 72 216 28 81
15, 30, 30, 20, 10, 8
