Maths-
General
Easy
Question
A man working 8 hours a day takes 5 days to complete a project. How many hours a day must he work to complete it in 4 days?
Hint:
Hint:
When two quantities of different units are compared and expressed as a ratio, it is known as Rate. For example, a car travels at a speed of 100 kilometres per hour, then it means in one hour it covers 100 kilometres.
The correct answer is: 10 hours
It is given that a man is working 8 hours a day and takes 5 days to complete a project.
So, the total number of working hours to complete the project = 8 × 5 = 40 hours
Now, we are asked to determine the number of hours the man must work to complete the project in 4 days.
Number of hours needed per day = 
= hours
Final Answer:
Hence, the man must for 10 hours a day to complete the project in 4 days.
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