If A:B=5:9,B:C=2:7,C:D=14:2 then A:D=

5:2

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9:10

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10:9

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None of the above

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Solution

The correct option is C
10:9

we have A/B=5/9 ,B/C=2/7,C/D=14/2

So on multiplying all the ratio,we get

$\frac{A}{B}$ X $\frac{B}{C}$ X $\frac{C}{D}$ = $\frac{5}{9}$ X $\frac{2}{7}$ X $\frac{14}{2}$

i.e. $\frac{A}{D}$ = $\frac{10}{9}$ =10:9

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(b) -5

(d) -6

If
A = {1, 2, 3, 4}

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If A:B=5:9,B:C=2:7,C:D=14:2 then A:D=

The correct option is C 10:9 we have A/B=5/9 ,B/C=2/7,C/D=14/2 So on multiplying all the ratio,we get AB X BC X CD =59X 27 X 142 i.e. AD = 109 =10:9

The correct option is C
10:9

we have A/B=5/9 ,B/C=2/7,C/D=14/2

So on multiplying all the ratio,we get

$\frac{A}{B}$ X $\frac{B}{C}$ X $\frac{C}{D}$ = $\frac{5}{9}$ X $\frac{2}{7}$ X $\frac{14}{2}$

i.e. $\frac{A}{D}$ = $\frac{10}{9}$ =10:9