Answer:
Step-by-step explanation:
take a line segment of 5.3 cm mark it as A & B. add 1cm to it mark the 3rd point as C. from point B draw a perpendicular line . construct perpendicular bisector of A and C.
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See below.
Total consumed = 1/4 + 1/5
= 5/20 + 4/20
= 9/20 of the salad they eat
1 - 9/20
= 11/20 of the salad is left
10/20 is half so more than half the salad is left