It will take 24 men working 9 hours a day each of build a house in 45 days . Given that all men work at the same rate,
(A) how many days will 18 men take to build the same house if they work 8 hours a day?
(B) how many hours per day must 20 men work if the house is to be completed in 48 days?
I'm having my mid-year examinations tomorrow and this question will be coming out. This is always my stumbling block as I don't understand the steps I need to take to solve this problem. Can I get any help? Thanks in advance