Question
Anil can do a piece of work in 25 days. He alone worked
at it for 10 days and then Sunil completed alone the rest work in 15 days. In how many days, they will complete the whole work, working together?Solution
Efficiency of Anil = 100/25 = 4% Work done by Anil in 10 days = 10/25 × 100 = 40% Remaining work = 60% Efficiency of Sunil = 60/15 = 4% Therefore, required number of days = 100/((4+4)) = 100/8 = 12(1/2) days   Â
7, 9, 21, ?, 107, 197
What will come in place of the question mark (?) in the following series?
112, 124, 138, 154, ?, 196
9 28 83 250 ? 2248
18Â Â Â 19Â Â Â 34Â Â Â 111Â Â Â Â 428Â Â Â Â 2165Â Â Â Â ?
...What will come in place of the question mark (?) in the following series?
17, 138, 307, 532, ?, 1182
5Â Â Â Â 12Â Â Â Â 26Â Â Â Â 47Â Â Â Â Â ? Â Â Â Â Â Â 110
...What will come in place of the question mark (?) in the following series?
144, ?, 154, 114, 194, 34
- What will come in place of (?) in the given number series.
7, 14, 28, 56, ?, 224 4, 9, 25, ?, 121, 169
What will come in place of the question mark (?) in the following series?
?, 65, 37, 73, 29, 81