Question
8 workers working for 8 days make 8 motor cycles. Then
how many motor cycles would be made by 4 workers if they work for 4 days? Assume equal efficiency of each worker.Solution
ATQ, If 8 workers make 8 motorcycles in 8 days, each worker makes 1 motorcycle in 8 days. Now, let’s see how many motorcycles 4 workers can make in 4 days: 1 worker makes 1/8 of a motorcycle in 1 day. So, 1 worker makes 4/8 (which is 1/2) of a motorcycle in 4 days. If 1 worker makes 1/2 a motorcycle in 4 days, 4 workers will make 4 times as much in 4 days, because there are 4 of them: 4 workers make 4 x (1/2) = 2 motorcycles in 4 days.
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Calculate the mean of these values:
25, 30, 28, 27, 29, 26, 32, 31
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If p:q = 5:7 and p + q = 408, then find the value of (q - p).
What is the median of the following list of numbers: 5, 3, 6, 9, 11, 19,12,20, and 1?
