If two painters can complete 3 rooms in 4 hours how many would it take to do 120 room
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The two painters can finish the 3 rooms in 4 hours, so you can take the input as 3/4. Then the calculation of time to complete 120 rooms is given below. You can take it as x/120.
The equation of this calculation is 3/4=x/120. The next step is 3x=480. Then the value of x is 160. Hence there are 160 hours required to paint 120 rooms.
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