Question

value of x in 9:x:21:49
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Answer 1

Step-by-step explanation:

21x =49×9

3x =7×9

x =7×3

= 21

Answer 2

Answer:

21

Step-by-step explanation:

9:x::21:49

product of mean=product of extremes

x*21=9*49

x=9*49/21

x=21

or

21x =49×9

3x =7×9

x =7×3

= 21

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