Question

check check by method of cross product weather 1 3,39,3and 9 are in proportion or not








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Answer 1

Step-by-step explanation:

by cross multiplication

13×9=117

39×3=117

since the products are the same the numbers are in proportion

Answer 2

Answer:

according to proportion:-

13/39=3/9

=>1/3=1/3

=>1/1=3/3

=>1=1

hence the numbers are in proportion because we get lhs equal to rhs