find the value of a, b, c and d so that the following are in proportion a,30,40,60
Answers
Answered by
4
Step-by-step explanation:
product of means = product of extreme
a×60=30×40
60a=1200
a=1200/60
a=20
b=30(given)
c=40(given)
d=60(given)
Answered by
0
Answer:
a is 50
Step-by-step explanation:
total proportion should be 180
so,30+40+60=130
180-150=50.
50,30:40,60
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