Class VIII

Find the value of 95 x 102 by suitable identity. 
  1. 10310 
  2. 10290 
  3. 10690
  4. 9690 
The coefficient of x in the expression -7x +5
  1. - 7 
The volume of rectangular box whose length, breadth and height are 2p,4q and 8r respectively is
  1. 14pqr 
  2. 2p+4q+8r 
  3. 64pqr 
  4. 64 
(x+a)(x+b) is equal to 
  1. x² ax +ab  
  2. x² +(a+b)x +ab 
  3. x² +bx +ab
  4. x² +ab
The numerical coefficient of y in the expression 2x+3y+7z is
  1. 3y 
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