0 votes 0 votes If $20$ men working $7$ hours a day can do a piece of work in $10$ days, in how many days will $15$ men working for $8$ hours a day do the same piece of work? $\dfrac{320}{21} \text{ days} \\$ $\dfrac{35}{3} \text{ days} \\$ $\dfrac{105}{16} \text{ days} \\$ $\dfrac{21}{5}\text{ days} \\$ Quantitative Aptitude nielit2019feb-scientistc work-time + – Lakshman Bhaiya asked Apr 1, 2020 • retagged Nov 12, 2020 by soujanyareddy13 Lakshman Bhaiya 13.8k points 678 views answer comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes option B s_dr_13 answered Mar 29, 2022 s_dr_13 228 points comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Answer is B $\frac{15}{20}=\frac{10}{x}$ [ men and hours are inversely proportional] $\frac{7}{8}=\frac{x}{10}$ [ days and hours are inversely proportional] x = $\frac{10*20*7}{15*8} = \frac{35}{3}$ days neethu_seb answered Dec 14, 2022 neethu_seb 3.4k points comment Share See all 0 reply Please log in or register to add a comment.