Question
A can complete a work in 15 days, and B can complete the
same work in 20 days. If they work together for 6 days, what fraction of the work is left?Solution
Work done by A in 1 day = 1/15 Work done by B in 1 day = 1/20 Work done by A and B together in 1 day = (1/15 + 1/20) = 7/60 Work done in 6 days = 6 × 7/60 = 7/10 Fraction of work left = 1 - 7/10 = 3/10 Correct answer: d
Find the wrong no in the given number series.
25, 123, 341, 727, 1329, 2199
384, 1152, 144, 432, 56, 162
Find the wrong number in given series.
2118, 2140, 2209, 2334, 2550, 2893
1582, 1616, 1658, 1708, 1756, 1812
Find the wrong number in given number series.
4350, 4400, 4600, 4750, 5150, 5450
86,142, 232, 364, 547
Find the wrong number in the given number series.
71, 98, 123, 154, 191, 232
120, 240, 80, 320, 60, 384
11Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â 18Â Â Â Â Â Â Â Â Â Â 37Â Â Â Â Â Â Â Â Â Â 36
...Find the wrong number in the given number series.
33, 42, 78, 159, 317, 528
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