If 5 persons can prepare 5 tables in 5 days, then how long will it take 25 persons to prepare 25 tables?
Answer & explanation
Correct answer: option 4
Formula to be used here,
\(\frac{M_1\;×\;D_1}{M_2\;×\;D_2}\) = \(\frac{W_1}{W_2}\)
where, M = No. of men, D = No. of Days, W = Units of work,
⇒ \(\frac{5\;×\;5}{25\;×\;D_2}\) = \(\frac{5}{5}\)
⇒ \( { D}_{2 } \) = 5 days.