Shyam can complete a task in 12 days by working 10 hours a day. How many hours a day should he work to complete the task in 8 days?
Answer & explanation
Correct answer: option 4
Formula to be used here,
\( { M}_{1 } \) x \( {H}_{1 } \) = \( { M}_{2 } \) x \( {H}_{2 } \)
where, M = No. of Men, H = No. of hours,
⇒ Putting the values in the formula,
⇒ 12 x 10 = 8 x \( {H}_{2 } \)
⇒ \( {H}_{2 } \) = 15 hrs.