Beat the clock-perform a task quickly or within a fixed time limit.
334, 301, 271, 251, 239, 233
17, 42, 58, 66, 71, 72
Find the wrong number in given number series.
3910, 3879, 3786, 3631, 3414, 3235.
32, 46, 88, 158, 256, 380
66, 115, 34, 155, 14, 211
Find the wrong number in given number series.
2669, 2838, 2993, 3185, 3397, 3629
153, 154, 310, 913, 3736, 18685
80, 88, 101, 122, 150, 185
3 4 18 72 360 2160
217 210 236 299 423 640
...