Manipal MET2024MathematicsBasics of Mathematics
a b = 1 3 and b c = 3 4 , then the value of a+2 b b+2 c is
Options
- A28 33
- B7 11
- C1 2
- DNone of these
Correct answer
B. 7 11
Step-by-step solution
a b = 1 3 b=3 a and b c = 3 4 3 a c = 3 4 a c = 1 4 c=4 a Then, a+2 b b+2 c = a+2(3 a) (3 a)+2(4 a) = a+6 a 3 a+8 a = 7 a 11 a = 7 11