Sarah competes in a long jump competition

Her first jump is 4.25m

Her best jump is 12% more than this

However, her best jump is 15% lower than the winning jump

Work out the length Of The winning jump

So her best jump is 12% of her 1st jump. So this is:

best jump = 1.12 * 4.25 m

best jump = 4.76 m

Since the winning jump is 15% lower, so this is only 85% of the best jump hence:

winning jump = 0.85 * 4.76 m

winning jump = 4.046 m = 4.05 m