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Can someone tell me how you solve this please?

an engine develops 120 horsepower at 80%, approximately what horsepower would be developed at 65 percent power
Reply 1
Original post by olliefairhall
an engine develops 120 horsepower at 80%, approximately what horsepower would be developed at 65 percent power


work out the proportion as 65/80
Original post by olliefairhall
an engine develops 120 horsepower at 80%, approximately what horsepower would be developed at 65 percent power


120/80 = 1.5
1.5 x 65 = 107.5
Original post by TeeEm
work out the proportion as 65/80


Then what do I do please?
Reply 4
Original post by olliefairhall
Then what do I do please?


multiply by 120
Original post by olliefairhall
an engine develops 120 horsepower at 80%, approximately what horsepower would be developed at 65 percent power


If 120 hp represents 80% of the power

Dividing by 80

Then 120/80 hp represent 1% of the power.

Times by 65

So, (120/80)x65 hp represents 65% of the power.

Note the method.

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