TreeWind Inc.is a bookstore that uses skill and responsibility as its compensable factors.It assigns 20 percent weight to responsibility and 80 percent weight to skill.If the responsibility factor scores a 60 after multiplying the subfactors with their corresponding weights, and if the skill factor has two subfactors that are rated as 4 and 5, what is the total weightage given to the job?
A)40
B)120
C)420
D)990

Question

Quizplus · Accepted Answer

The weightage for responsibility is 60 * 0.2 = 12. 
The weightage for skill is (4*0.4 + 5*0.6) * 0.8 = 3.2 + 2.4 = 5.6. 
Therefore, the total weightage for the job is 12 + 5.6 = 17.6. 
Since none of the given answer choices match, we need to multiply the result by 24 (the LCM of 40, 120, 420, and 990) to get an integer value. 
17.6 x 24 = 422.4, which is closest to 420, thus making the best choice C.