Question
K and L can complete a work in 16 days. If K alone can
complete it in 48 days, how long will L take to complete the work alone?Solution
Let the total work be 48 units. {LCM (16 and 48)}
So, combined efficiency of 'K' and 'L' = 48 ÷ 16 = 3 units/day
Efficiency of 'K' = 48 ÷ 48 = 1 unit/day
So, efficiency of 'L' = 3 - 1 = 2 units/day
So, time taken by 'L' to do the work alone = 48 ÷ 2 = 24 days
A series is 2100, 3431, 2431, 3160, 2648, 2991
If another series 1728, __, __, __, __, p, follows the same pattern as the given number series, th...
10Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8.5Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â Â Â ?
...1, 27, ?, 343, 729, 1331
38    40    83    254    ?     5126
Choose the number which is different from others in the group.
62 123 214 341 ? 727
...642 202 541 312 523 ?
...800    544    416    352    ?     304
9060 5685 3488 2157 1428 1077
61                          48                          ?                    ...
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