Find missing number 120 : 80 proportion 90:_____
Answers
Answered by
3
Answer:
60
Step-by-step explanation:
(120 × 0.75 =) 90 : (80 × 0.75 =) 60
Answered by
3
Answer:
x=30
Step-by-step explanation:
we know that the product of extreme is equal to product of mean
Therefore 120:80::90:X = 120*X = 80*90
= 120X = 80*90
X = 90*80/120
X= 90*8/12
X = 90/3
X = 30
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