If * and o are two operations such that a*b=a multiplied by b+2 and a o b =a+b-1 then the value of {(3*3)*3} o 3 is

Question

want answer

Answer 1

a*b = a(b+2)    aob = a+b-1

 

3*3 = 3(3+2) = 15

 

So, (3*3)*3 = 15*3 = 15*(3+2) = 75

 

Thus, {(3*3)*3}o3 = 75o3 = 75+3-1 = 77