Question
The efficiency of A, B, C, D are in the ratio of 6 : 5 :
4 : 3. If A and C can do a work together in 6 days. Then How much days B and D will take to complete the same work?Solution
Efficiency of (A+C) = (6+4) = 10 Days taken by (A+C) together to complete the work = 6 days Efficiency of (B+D) = (5+3) = 8 So, B and D will take time = (Total days of (A+C)×Total Efficiency of (A+C))/(Total Efficiency of (B+D)) = (6 ×10)/8 = 60/8 = 7(1/2) days
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
