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Maths / Ratio and Proportion / Ratio and Its Simplest Form
QUESTION
 

If  large a:b=2:3: : : and : : b:c=5:7 ,: : then : : a:b:c  is equal to __________

OPTIONS
A. 

6 : 10 : 14

B. 

2 : 3 : 7

C. 

10 : 15 : 21

D. 

None of these

Right Option : C
EXPLANATION
Explain TypeExplanation Content
Text

Given,        a:b=2:3

and            b:c=5:7

LCM of (3,5) = 15

                                  frac {a}{b}=frac {2}{3}=frac {10}{15}

and                           frac {b}{c}=frac {5}{7}=frac {15}{21}

therefore : : : : a:b:c=10:15:21

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