CUET Preparation Today
CUET
General Test
Quantitative Reasoning
Algebra
If x and y vary inversely to each other and x = 7 when y = 12, then find y when x = 21.
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∵ x and y are inversely
and x = 7, y = 12
Then xy = 12 × 7 = 84
Now if x = 21, then y = 84/21 = 4
