Question
Aman finishes 2/5 of a task in 8 days, while Bhanu
completes the entire task in 16 days. How long will it take for both Aman and Bhanu, working together, to complete 90% of the task?Solution
ATQ; Time taken by ‘Aman’ to complete whole work alone = 8 × (5/2) = 20 days Let total work = 80 units Efficiency of ‘Aman’ = 80/20 = 4 units/day Efficiency of ‘Bhanu’ = 80/16 = 5 units/day Required time taken = {(0.9 × 80)/(5 + 4)} = 8 days
25   25   37.5   ?   328.125   1804.6875
18, 35, 68, 117, ?, 263Â
Find the missing number, in the given number series.
42, 52, 72, 112, 192, ?
Find the missing character.
Find the missing number in the given number series.
512, 128, 32, 8, ?, 116Â Â Â 25Â Â Â 36Â Â Â 49Â Â Â 64Â Â Â Â ?
7 47 ? 223 359 527
...What will come in the place of questions (?) mark in the following questions.
1279, 1265, ? , 1225, 1193, 1149
30, 43, 58, 75, 94, ?
What will come in place of the question mark (?) in the following series?
81, 83, 87, 95, 111, ?
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