Question
A, B and C can do a work in 8, 16 and 24 days
respectively. They all begin together. A continues to work till it is finished, C leaving off 2 days and B one day before its completion. In what time is the work finished?Solution

58 83 133 ? 308 433
156, 172, 196, ?, 268, 316
What will come in place of the question mark (?) in the following series?
24, 8, 15, ?, 12, 4
500, 400, 315, 245, ?, 150
What will come in place of the question mark (?) in the following series?
77, 198, 342, 511, 707, ?
√(10198 )× √(7220 )÷ 16.69 + 2010.375= ?
What will come in place of the question mark (?) in the following series?
112, 116, 121, ?, 134, 142
What will come in place of the question mark (?) in the following series?
555, 430, ?, -320, -1320, -3320
17 21 51 169 701 ?
6, 7, 16, 51, 208, ?