If 10 men can complete a piece of work in 12 days by working 7 hours a day, then in how many days can 14 mendo the same work by working 6 hours a day?

10

Formula to be used here,

\( { M}_{1 } \) x \( { D}_{1 } \) x \( { H}_{1 } \)  = \( { M}_{2 } \) x \( { D}_{2 } \) x \( { H}_{2 } \)

⇒ where, M = No. of men, D = no of days, H = No. of Hours,

⇒ Putting in the values,

⇒ 10 x 12 x 7 = 14 x  \( { D}_{2 } \) x 6

⇒ \( { D}_{2 } \) = 10 days.