Question

The damage and repair log of a robot are given below.
Damaged: 12%
Repaired: 7/2 %
Damaged: 15/2 %
Repaired: 19/2 %
Damaged: 5

Calculate the percentage functonality of the robot?

• A. 86%
• B. 88.5%
• C. 90%
• D. 92.5%

Answer 1

The correct option is B 88.5%

On subtracting the damaged parts and adding the repaired ones to calculate the working status, we have,

100 + (-12) + $\frac{7}{2}$ + (-$\frac{15}{2}$) + ($\frac{19}{2}$) + (-5)
[by commutative property ]

= (100 - 12 - 5) + ($\frac{7}{2}$ - $\frac{15}{2}$ + $\frac{19}{2}$)
[ by associative property]

= 83 + $\frac{7-15+19}{2}$

= 83 + $\frac{11}{2}$

= $\frac{177}{2}$

= 88.5

Hence, the percentage functionality of the robot is 88.5%.