Question

x,y రాశుల xxy =k (స్థిర పదం) అయిన అవి ____లో ఉన్నాయి ?​

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

If two quantities x and y such that x × y = k (constant) then ________

a) mixed proportion

b) direct proportion

c) inverse proportion

d) none of the above

EVALUATION

We know that if x and y are in direct proportion we write it as

$\displaystyle \sf{x \propto \: y}$

Which gives x = ky

Again if x and y are in inverse proportion then we write it as

$\displaystyle \sf{x \propto \: \frac{1}{y} }$

Which gives xy = k

FINAL ANSWER

Hence the correct option is

c) inverse proportion

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