If a is 75% of b,b is 150% of c and d is 25% of c,then find a:d?

If a is 75% of b,b is 150% of c and d is 25% of c,then find a:d


a)9:1 b)9:2 c)8:3 d)8:1

If a is 75% of b,b is 150% of c and d is 25% of c,then find a:d?
a = 0.75b, b = 1.5c so a =0.75*1.5*c and d = 0.25c so the ratio is 0.75*1.5/0.25 = 4.5 so 9:2
Reply:if:


a = 3/4


b = 4/4


c = (4/4) / (3/2) = 2/3


d = (2/3) * (1/4) = 1/6





Find the least common denominator of a and d, which is 12. a would end up being 9/12, and d would be 2/12.





Therefore, the answer is 9:2 (b).
Reply:How 'bout a different approach:





let a = 1, then


a=(3/4)b or b= (4/3)a or 4/3


b=4/3


b= (3/2) c or c= (2/3) b which is 4/3 so


c= 8/9


d=(1/4)c or (1/4)(8/9) which is 2/9


d=2/9 and the ratio desired is


a:d is 1:2/9 or 9:2
Reply:a = 0.75b


b = 1.5 c


d = 0.25c





d = 0.25c


d = c/4


c = 4d





b = 1.5c


b = 1.5*4d (c = 4d)


b = 6d





a = 0.75b


a = 0.75*6d (b = 6d)


a = (3/4)*6d


a = 18d/4


a = (9/2)*d


a/d = 9/2 (didividing both sides by d)


a:d and a/d mean the same thing.
Reply:B. 9:2








3/4 =a/b then 6/4 =b/c then 1/4 =d/c





Multiple =18/4 reduce 9/2
Reply:b is the correct choice.





If c =100 then d = 25





bthen =150


a then equals 112.5





double a and d and the ratio is 225 to 50


9 to 1
Reply:a=.75b


b=1.5c


d=.25c


a/d=?


a=.75(1.5c)


d=.25c


a:d=(.75(1.5)c):.25c


a:d=9:2
Reply:b. 9:2





a= 0.75b


b=1.5c


d=.25c


c=4d





a=1.125c


a=4.5d





a/d=4.5d/d = 9/2





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Reply:I used to love maths but I've been at work all night and this is far too hard to tackle. Im going to favourite it though so I can see the answer =D
Reply:b?
Reply:i hate math

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