The pie chart given below shows the time taken in 7 different procedures J1, J2, J3, J4, J5, J6 and J7 in making a car as a percentage of total time taken. The total time taken in making one car is 1200 hours.
What is the average time taken in procedures J3, J6 and J7?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 192 hours.
| Understanding/Application |
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Average = Sum of all quantities/Total number of quantities Total time taken to make a car = 1200 hours Percentage of time taken in J3 = 20% Time taken in J3 = 20% of 1200 = (1200 × 20)/100 = 240 hours Percentage of time taken in J6 = 16% Time taken in J6 = 16% of 1200 = (1200 × 16)/100 = 192 hours Percentage of time taken in J7 = 12% Time taken in J7 = 12% of 1200 = (1200 × 12)/100 = 144 hours |
| Average = (240 + 192 + 144)/3 = 576/3 = 192 hours |