40 people were employed who could together make 60 toys in 8 hours, but 8 people left just before work was to begin. How many toys could then be made in 12 hours?
Answer & explanation
Correct answer: option 4
Formula to be used here,
\(\frac{M_1\;×\;H_1}{M_2\;×\;H_2}\) = \(\frac{W_1}{W_2}\)
where, M = No. of Men, H = No. of hours, W = Work
⇒ Putting values in the formula,
⇒ \(\frac{40\;×\;8}{32\;×\;12}\) = \(\frac{60}{W_2}\)
⇒ \( { W}_{2 } \) = 72.