A factory produces three types of widgets: A, B, and C. In one week, 12 units of A (average weight 47 kg each), 8 units of B (average weight 62 kg each), and 15 units of C (average weight 53 kg each) are manufactured. What is the weighted average weight of the widgets produced in that week?
53 kg
Weighted average: \(\dfrac{12\times47+8\times62+15\times53}{12+8+15} = \dfrac{564+496+795}{35} = \dfrac{1855}{35} = 53\).
Hence, the weighted average weight of the widgets is 53 kg.
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Important Questions from Average
The average height of 20 students of class 8 is 152 cm and the average height of 15 students of class 9 is 168 cm. What is the average height (to the nearest cm) of the students of both classes?
The average of 4, 6, 8, 12 and x is 7 and the average of x, 9, 13, 15 and y is 9. What is the value of 2x - 3y?
The average weight of 20 girls in a school was 52 kg. Two new students of weight 54 kg and 50 kg were admitted. The ratio of this new average to the old one is:
If the average of two numbers is 13 and the square root of their product is 12, then the difference between the numbers is:
If the average of 5 consecutive odd integers in increasing order is 11 , then the average of the last 3 of them is:
