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Question
If the sub-duplicate ratio of 6x2 : 24y2 is ______.
Options
x : 2y
2x : y
x : y
y : x
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Solution
If the sub-duplicate ratio of 6x2 : 24y2 is x : 2y.
Explanation:
We know that, for any ratio a : b
Sub-duplicate ratio be `sqrt(a) : sqrt(b)`
∴ Sub-duplicate ratio of 6x2 : 24y2
= `sqrt(6x^2) : sqrt(24y^2)`
= `sqrt(6x) : 2sqrt(6)y`
= x : 2y
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