CMA Foundation · Fundamentals of Business Mathematics and Statistics · Statistical Representation of Data
In a two-way table of 200 students of a commerce college, 120 are male. Of the 80 females, 30 opted for Costing. In total 90 students opted for Costing. How many males opted for Costing?
60 males opted for Costing. The total number choosing Costing is 90, of whom 30 are female, so subtracting leaves 60 males. This fits within the 120 male students in the table.
- A50
- B60Correct
- C70
- D90
Explanation
Total Costing = 90 and females in Costing = 30, so males in Costing = 90 − 30 = 60. Check: 60 of 120 males is within the male total, and the females 30 of 80 fit too. Choosing 50 would wrongly subtract 40.
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