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The following graph shows the sale of few items of a garment company for three months.

3-D bar chart of monthly sales in million units. January: shirt 3, trouser 5, coat 7, T-shirt 4, jacket 6. March: 8, 9, 10, 6, 7. May: 12, 14, 11, 10, 13

What is the percentage of sale of shirts in January over the total sales in the month of January?

  • A.20%
  • B.12%
  • C.17%
  • D.25%

Answer: B

The percentage is 12%.

The January sales (blue bars) are shirt 3, trouser 5, coat 7, T-shirt 4 and jacket 6, which total 25 million units. Shirts are 3 of those.

\[ \frac{3}{25}\times100=12\% \]

20%, 17% and 25% would need a different shirt figure or total.

The graph is a three-dimensional bar chart with three rows of bars: blue for January, orange for March and grey for May. Only the blue bars are needed here. The values 3, 5, 7, 4 and 6 add to 25, and the share of shirts is 3 out of 25, which is 12%.

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