Question
Solution
LCM (3, 7, 11) = 231 By taking the largest 5-digit number 67699 and divide it by 231. ∵ 67699 = 231 × 293 + 16 67699 = 67683 + 16  67699 - 16 = 67683 (completely divisible by 231) 67683 = 676xy (where x = 8, y = 3) (3x - 5y) = 3 × 8 - 5 × 3 24 - 15 = 9 ∴ The required result = 9
169, 224, 293, 385, 497, 629
Find the wrong number in the given number series.
20, 33, 50, 69, 93, 121
25Â Â Â 26Â Â Â Â 28Â Â Â Â 32Â Â Â Â 42Â Â Â Â 56
Find the wrong number in the given number series.
8, 12, 23, 40, 66, 103
8137, 5405, 3669, 2701, 2201, 1997
Find the wrong number in the given number series.
78, 66, 51, 39, 20, 12
2824Â Â Â Â 2314Â Â Â Â Â 1973Â Â Â Â 1759Â Â Â Â 1634Â Â Â Â 1574
In each of the following number series, one term is wrong. Find the wrong term.
3, 7, 13, 21, 31, 42, 57
Find the wrong term in the given series below.
2847, 2954, 2799, 3088, 2727, 3256
Find the wrong number in the given number series.
2, 5, 10, 17, 26, 38, 50
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