Question
P and Q together started a business with initial
investment in the ratio of 1:12, respectively. The time-period of investment for P and Q is in the ratio of 3:7, respectively. Find the profit share of Q, if the profit share of P is Rs. 1000Solution
Ratio of the profit share of P to Q = (1 × 3): (12 × 7) = 3:84 = 1: 28 Profit share of Q = (28/1) × 1000 = Rs. 28000
Approximately, the coefficient of variation for the given data where Pearson's second measure of skewness = 0.42, arithmetic mean- 86 and median 80, is:


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