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Study the following table and answer the question. The table depicts the number of oranges sold by shops A and B to males and females on Monday
| Shops | Number of oranges sold to males | Number of oranges sold to females |
|---|---|---|
| A | 21 | 26 |
| B | 39 | 37 |
2
18
11
15
18
Focus only on the 'Number of oranges sold to males' column for shops A and B: 39 and 21. Simply subtract the smaller from the larger: 39−21=18.
Shop A sold 21 oranges to males and 26 to females. Shop B sold 39 oranges to males and 37 to females.
D=∣MB−MA∣
Focus only on the 'Number of oranges sold to males' column for shops A and B: 39 and 21. Simply subtract the smaller from the larger: 39−21=18.
Confusing the 'males' and 'females' columns or calculating the difference for shop A alone (which isn't asked) or the difference for females by mistake.
Identify required data
From the provided table, locate the column 'Number of oranges sold to males' for shops A and B.
MA=21,MB=39
Set up the subtraction
Find the difference between the sales of shop B and shop A for males.
Difference=39−21
Perform calculation
Subtracting 21 from 39 gives the final result.
39−21=18
B is correct because the difference between 39 and 21 is 18.
Always ensure you are picking values from the correct intersection of row (Shop) and column (Category). This skill is essential for DI (Data Interpretation) sets in competitive exams.
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