Question

12. If ratio 3 : x is equivalent to the ratio 18:42, what is the value of x?
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Answer 1

heyy mate... here's hur answer....

ratio given = 3:x

equivalent to = 18:42

hence,

3:x = 18:42

3/x = 18/42

18x = 42×3 (cross multiplying)

x= 42×3 ÷ 18

x= 7. (by crossing out dividing.)

thus x value is 7

hope it helps you..

all the best

Answer 2

Answer:

3:x = 18:42

3/x = 18/42

x/3=42/18

x=42*3/18

x = 7