Q. No.1: The average of ten numbers is 7. If each number is multiplied by 12; then the average of new set of numbers is?

A 7

B. 19

C. 82

D. 84

• its 84 ,consider 7 nums hence total will be =7*10=70
  now since 12 is multiplied the equatns becomes =12(total num/10)=12(70/10)=84
• 12 years agoHelpfull: Yes(20) No(1)
• D.84
  Total = 7*10
  new total = 70*12=840
  new average=840/10=84
  
• 12 years agoHelpfull: Yes(9) No(2)
• average of 4 numbers (a+b+c+d)/4 =7
  if each number is multiplied by 12 then average is (12a+12b+12c+12d)/7
  =12(a+b+c+d)/4 (take 12 common and substitue given value 7)
  =12*7
  84
• 12 years agoHelpfull: Yes(7) No(1)
• ten no avg = 7
  total = 10*7
  now 12 is multiplied so new total = 12*10*7
  
  new avg = 12*10*710=84
• 12 years agoHelpfull: Yes(4) No(0)
• sorry i dint mention answer correctly it's 84..:)
• 12 years agoHelpfull: Yes(3) No(1)
• x/10=7, x=70,12*x/10=?
  12*70/10=84 ans 83
  
• 12 years agoHelpfull: Yes(2) No(3)
• let the sum of ten numbers be X
  than there avg will be X/10=7(as given in the question)
  
  now each number is multiplied by 12 so
  our new equation is x+120/10=ans(put the value of X we got frm above equation)
  
  ans is 19
• 12 years agoHelpfull: Yes(2) No(9)
• ans is D.
  avg of 10 numbers is 7.
  if the no's are multiplied by 12.then new avg.=12*7=84.
• 12 years agoHelpfull: Yes(2) No(0)
• plz send me recent tcs paper "rantideb91@gmail.com" its urgent..
• 12 years agoHelpfull: Yes(1) No(1)
• always when all the numbers are multiplied by 12 then average is even....so 7*12=84
• 12 years agoHelpfull: Yes(1) No(1)
• 84
  x/10=7 so 12x/7= 7*12=84
• 12 years agoHelpfull: Yes(1) No(0)
• @ryan: 120??hw can u add all 12's wen they being multiplied
• 12 years agoHelpfull: Yes(0) No(1)
• @ VASU just mail me tcs latest patterns venkat3191@gmail.com
• 12 years agoHelpfull: Yes(0) No(0)
• @VASU pls pls mail me tcs questions neelasarkar19991@gmail.com
• 12 years agoHelpfull: Yes(0) No(0)