Q The Value of √24 + 3√64 + 4√28 is

A)12.55
B)11
C)12
D)13.98

Q. If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a
in 2 ^ a = a ^ 3
A)-2
B)-1
C)0
D)1

• answer of the 2nd question is
  2^a = 2*2+a......(i)
  a^3 = 2*a+3.....(ii)
  4+a=2a+3
  =>a=1
• 9 years agoHelpfull: Yes(23) No(0)
• ans is option D. 1
  2^a=2*2+y=4+a-----(1)
  a^3=2a+3----------(2)
  so
  2a+3=4+a
  a=1
  
• 9 years agoHelpfull: Yes(3) No(0)
• ans for 1st question:
  (A)12.55
• 9 years agoHelpfull: Yes(1) No(4)
• (2*2)+a=(2*a)+3
  4+a=2a+3
  4-1=2a-a
  a=1
  ans=1
• 9 years agoHelpfull: Yes(1) No(0)
• 2nd question answer is 1
• 9 years agoHelpfull: Yes(0) No(1)
• ans is option D
• 9 years agoHelpfull: Yes(0) No(0)
• please explain qus 1?
  
• 9 years agoHelpfull: Yes(0) No(0)
• In odd no.series,the middle no is the avg of all odd no. i.e.4th no =50
  
• 9 years agoHelpfull: Yes(0) No(2)
• Bhasker can u pls expln the soltn of 2nd question.......????
• 9 years agoHelpfull: Yes(0) No(0)
• 2^a = 2*2+a......(i)
  a^3 = 2*a+3.....(ii)
  4+a=2a+3
  =>a=1
  
• 9 years agoHelpfull: Yes(0) No(0)
• The Answer is 11
  .
  Actually the question is root(24) + cuberoot(64) + quardroot(28)
  
• 9 years agoHelpfull: Yes(0) No(0)
• question 1 is wrong...please correct the question
  
• 9 years agoHelpfull: Yes(0) No(0)
• 4+a=2a+3
  a=1
• 8 years agoHelpfull: Yes(0) No(0)