If 36 men can do a piece of work in 15 hours, in how many hours will 15 men do it?
If 36 men can do a piece of work in 15 hours, in how many hours will 15 men do it?
Answer/Solution
36
Steps/Work
Explanation:
Let the required no of hours be x. Then
Less men , More hours (Indirect Proportion)
\inline \fn_jvn \therefore 15:36 ::15:x \inline \fn_jvn \Leftrightarrow (15 x X)=(36 x 15) \inline \fn_jvn \Leftrightarrow \inline \fn_jvn x=\frac{36\times 15}{15}=36
Hence, 15 men can do it in 36 hours.
Answer: B) 36
Let the required no of hours be x. Then
Less men , More hours (Indirect Proportion)
\inline \fn_jvn \therefore 15:36 ::15:x \inline \fn_jvn \Leftrightarrow (15 x X)=(36 x 15) \inline \fn_jvn \Leftrightarrow \inline \fn_jvn x=\frac{36\times 15}{15}=36
Hence, 15 men can do it in 36 hours.
Answer: B) 36