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M D = M D ⇒ (3 men + 4 women) × 7 = (2 men + 1 women) × 14 ⇒ (3 men + 4 women) = (2 men + 1 women) × 2 ⇒ 3 men + 4 women = 4 men + 2 women ⇒ 2 women = men ⇒ (women ∶ men) = 1 : 2 ⇒ Efficiency Ratio of (women ∶ men) = 1 ∶ 2 ⇒ Total Work = Efficiency × Time ⇒ (3 men + 4 women) × 7 = (2 men + 1 women) × 14 ⇒ (3 × 2 + 4 × 1) × 7 = (2 × 2 + 1 × 1) × 14 = 70 ⇒ Total Work = 70 ⇒ number of days to complete the work by 7 women = Total work/Efficiency ⇒ 70/(7 × 1) ⇒ 10 days
16 25 36 49 64 ?
5, 18, 39, 68, 105, ?
-1, 5, 23, 59, ?
58, 67, ?, 76, 40, 85
188 178 158 ? 88 38
Which of the following number will replace the question mark (?) and complete the given number series?
4, 5, 12, 39, 160, ?
418, 406, 430, 382, 478, ?, 670
12, 11, 20, 57, 224, 1015
216, 81, 297, 378, ?, 1035, 1728
8, 9, 125, ?, 1331, 169