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bab : splsv
panjang tali kita misalkan dengan x
(4/5)x = 100
x = 100 × 5/4
x = 25 × 5
x = 125
jadi panjang tali = 125cm
(1 1/2)x
= (3/2)x
= (3/2) . 125cm
= 375cm/2
= 187,5 cm
semoga membantu