If 30 men can harvest a meadow in 7 days, in how many days can 21 men harvest the same meadow?
Answer & explanation
Correct answer: option 1
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.