Question
A 40 hectare field is reaped by 4 men, 6 women and 8
children together in 10 days. If working capabilities of a Man, a Woman and a Child are in the ratio 6: 5: 4, then a 60 hectare field will be reaped by 12 Men, 8 Women and 15 Children in how many days?Solution
According to the question, Efficiency of Men, Women and Children = 6 : 5 : 4 units/day One day work of 4 Men = 4 × 6 = 24 units One day work of 6 Women = 6 × 5 = 30 units One day work of 8 Children = 8 × 4 = 32 units Let time taken by 12 Men, 8 Women and 15 Children be ‘D’ days By applying formula, ((24+30+32)×10)/40 = [(((12×6)+ (8×5)+(15×4))×D)/60] 860/40 = ((72+40+60)×D)/60 860/2 = (172×D)/3 D = (860×3)/(2×172) = 7^1/2 days
114, 134, 174, 254, 414, ?Â
10, 20, 60, 300, ?, 23100
What will come in place of the question mark (?) in the following series?
17, 138, 307, 532, ?, 1182
6848 + 9215 – 7295 - ? = 5945 – 3244
12, 24, 46, 78, 120, ?
What will come in place of the question mark (?) in the following series?
121, 110, 97, ?, 61, 38
32, 42, 62, 92, ?, 182
418, 406, 430, 382, 478, ?, 670
11          20          ?             64          112        192
...250, 279, 311, 349, 396, ?
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