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Question

# The pictograph shows the number of beads of different colours in a box. The number of yellow beads is not shown. Key: Each represents 15 beads. Altogether, there are 510 beads in the box. How many must be drawn in the pictograph to represent the yellow beads?

A
7
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B
6
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C
8
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D
5
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Solution

## The correct option is A 7Each represents 15 beads. There are 510 beads in the box. ∴ Total number of symbols needed for representing 510 beads =51015=34 Number of symbols for green beads = 10 Number of symbols for red beads = 9 Number of symbols for blue beads = 8 Number of symbols present on the graph = 10 + 9 + 8 = 27 ∴ Number of symbols to be drawn to represent yellow beads = 34 - 27 = 7

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