Question Number 166261 by gadafi last updated on 16/Feb/22
$${If}\:{four}\:{men}\:{can}\:{dig}\:{a}\:{piece}\:{of}\:{land}\:{in}\:\mathrm{2}{days}\:{at}\:{eight}\:{hours}\:{everyday}.{How}\:{many}\:{days}\:{can}\:{two}\:{men}\:{dig}\:{in}\:{every}\:{six}\:{hours}\:{perday}? \\ $$
Commented by 1549442205PVT last updated on 17/Feb/22
$${you}\:{should}\:{write}\:{your}\:{post}\:{like}\:{this} \\ $$$${so}\:{it}\:{is}\:{easy}\:{for}\:{people}\:{to}\:{read}. \\ $$$${If}\:{four}\:{men}\:{can}\:{dig}\:{a}\:{piece}\:{of}\:{land}\: \\ $$$${in}\:\mathrm{2}{days}\:{at}\:{eight}\:{hours}\:{everyday}. \\ $$$$\:{How}\:{many}\:{days}\:{can}\:{two}\:{men}\:{dig}\:{in}\: \\ $$$${every}\:{six}\:{hours}\:{perday}? \\ $$$$ \\ $$
Answered by mr W last updated on 17/Feb/22
$${for}\:{the}\:{work}\:{totally} \\ $$$$\mathrm{4}×\mathrm{2}×\mathrm{8}=\mathrm{64}\:{hours}\:{are}\:{needed}. \\ $$$${if}\:{two}\:{men}\:{work}\:{only}\:\mathrm{6}\:{hours}\:{each}\:{day}, \\ $$$${they}\:{need}\:\frac{\mathrm{64}}{\mathrm{2}×\mathrm{6}}=\mathrm{5}\frac{\mathrm{1}}{\mathrm{3}}\:{days} \\ $$