How do you work this out?
4 men 8hrs to build a wall, how long would it take 7 men to build same wall?
Answers
If 4 men take 8 hours then you must first work out how long it takes 1 man.
1 man will take 4 x 8 = 32 hours.
Now we work out how many hours it will take for 7 men. The calculation involved here will be 32/7 = 4.57 hours
31 January 2011
A fruit conserve contains blackcurrants and redcurrants in the ratio 5to2 There are 300g of redcurrants in the conserve
How many grams of blackcurrants are in the conserve?
Hom much fruit is in the conserve altogether?
28 September 2022
Andy stacks 60 cans on a shelf in 1 minute. Matt stacks 60 cans on a shelf in 3 minutes. At these rates, how many minutes would it take both of them working together to stack 180 cans?
02 May 2023
Add an answer