Of the four numbers p,q, r, s the ratio of the first number to the second 2:3 and second to the third 5:6 and third to the fourth 8:9 .Find the continued ratio of the four numbers
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The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
[A]. 20
[B].
30 @
[C]. 48
[D]. 58
Answer: Option B
Explanation:
Let the three parts be A, B, C. Then,
A : B = 2 : 3 and B : C = 5 : 8 = 5 x 3 : 8 x 3 = 3 : 24
5 5 5
A : B : C = 2 : 3 : 24 = 10 : 15 : 24
5
B = 98 x 15 = 30.
49
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