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How to do math problems and fractional equation application problems in junior two?
Solution: Let the bus speed be x km/h and the car speed be 2x km/h..

200÷x (decimal form) -2 = 200 ÷ 2x (decimal form)

Multiply the two sides of the equation by 2x,

400-4x = 200

To solve this equation: x=50.

Test: When x=50, 2x is not zero.

The solution of the original fractional equation is x = 50.

∴2x= 100 (vehicle speed)

Wish: Happy study!

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