22 x 15% = 3.3 + 22 = 25.3 mpg
Increase in mileage of the car will be = 3.3 miles per gallon. ;
Mudrik's gas mileage will increase by 3.3 miles per gallon, bringing his new mileage to 25.3 miles per gallon after installing the device. This is calculated by taking 15% of his current mileage of 22 miles per gallon. The increase represents a notable improvement in his vehicle's fuel efficiency.
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