a:2=b:5=c:8 then 50% of a = 20% of b = x % of c. find x
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15
a:2 = b:5 = c:8
a:2 = b:5
5a = 2b
a = 2b/5 —-> 1
b = 5a/2 —-> 2
b:5 = c:8
8b = 5c
b = 5c/8 —-> 3
c = 8b/c —-> 4
20% of b = x% of c
(20/100)*b = (x/100)*c
(20/100)*(5c/8) = (x/100)*c [from 3]
20*5/8 = x
x = 12.5 ——> Answer
a:2 = b:5
5a = 2b
a = 2b/5 —-> 1
b = 5a/2 —-> 2
b:5 = c:8
8b = 5c
b = 5c/8 —-> 3
c = 8b/c —-> 4
20% of b = x% of c
(20/100)*b = (x/100)*c
(20/100)*(5c/8) = (x/100)*c [from 3]
20*5/8 = x
x = 12.5 ——> Answer
Answered by
0
a:2 = b:5 = c:8
a:2 = b:5
5a = 2b
a = 2b/5 —-> 1
b = 5a/2 —-> 2
b:5 = c:8
8b = 5c
b = 5c/8 —-> 3
c = 8b/c —-> 4
20% of b = x% of c
(20/100)*b = (x/100)*c
(20/100)*(5c/8) = (x/100)*c [from 3]
20*5/8 = x
x = 12.5 ——> Answer
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