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Ratio of efficiency of P and Q = 7:5 Let the efficiency of P and Q be 7x and 5x units per day respectively. Total work = 12x × 20 = 240x units Required time = (0.75 × 240x)/5x = 36 days
12, 12, 30, 120, ?, 4620
155, 161, 173, 191, ?, 245
37, 57, 82, ?, 147, 187
196, 196, 203, 229, 292, ?
178 168 148 ? 78 28
What will be come in place of (?) in the given number series.
2, 3, 5, 7, 11, ?, 17
1, 7, 37, 187, 937, ?
What will come in place of the question mark (?) in the following series?
4, 11, 32, 95, 284, 851, ?
21, 28, 39, 52, ?, 88
