X varies inversely as square of y. Given that y = 2 for x = 1. The value of x for y = 6 will be equal to
A) 3 B) 9 C) 1/3 D) 1/9

• d)1/9
  x varies inversely square with y
  we have
  x = k/y*y
  When x is 1, y is 2
  we have
  1 = k/2*2
  1*4 = k
  4 = k
  So, when y is 6
  x = 4/36
  x = 1/9.
• 13 years agoHelpfull: Yes(32) No(3)
• x varies inversely as square of y.
  we have
  x = k/y^2
  Given that x = 1, y = 2
  then
  1 = k/2^2
  k =4
  
  when y is 6
  x= k/6^2
  x = 4/36
  x = 1/9.... option D
• 13 years agoHelpfull: Yes(8) No(0)
• Ans; d)1/9
  x varies inversely as square of y. So
  x = k/y*y, where k is constant
  Further it is given that for x = 1, y = 2
  As per given condition
  1 = k/2*2 => 1*4 = k => k = 4
  So, when y is 6
  x = 4/6*6 => x = 1/9.
• 13 years agoHelpfull: Yes(3) No(0)
• x varies inversely with y
  we have
  x = k/y
  When x is 1, y is 2
  we have
  1 = k/2
  k =2
  
  x= k/y
  when k=2, y =6
  x= 2/6 = 1/3 ... option C
• 13 years agoHelpfull: Yes(2) No(10)
• x varies inversely square of y
  so,x=k/y*y
  y=2 for x=1
  so,1=k/2*2
  k=4
  now,y=6
  so,x=4/36=1/9
  ans:D
• 13 years agoHelpfull: Yes(1) No(1)
• x=c/y^2;since given that x=1,y=2,then
  1=c/4=>c=4. again given that x for y =6 then x=4/36=>1/9
• 12 years agoHelpfull: Yes(1) No(1)
• C)1/3
  x varies inversely with y
  we have
  x = k/y
  When x is 1, y is 2
  we have
  1 = k/2
  1*2 = k
  2 = k
  So, when y is 6
  x = 2/6
  x = 1/3.
  y = 80
• 13 years agoHelpfull: Yes(0) No(10)
• 1/9
  1=k/4=>k=4
  x=k/6^2
  x=1/9
  
• 9 years agoHelpfull: Yes(0) No(1)