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If 30 men can harvest a meadow in 7 days, in how many days can 21 men harvest the same meadow? |
10 14 12 15 |
10 |
Formula to be used here, \( { M}_{1 } \) x \( { D}_{1 } \) = \( { M}_{2 } \) x \( { D}_{2 } \) where, M = No. of men, D = No. of Days, ⇒ Putting in the values, ⇒ 30 x 7 = 21 x \( { D}_{2 } \) ⇒ \( { D}_{2 } \) = 10 days. |
