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?

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Solution

The correct option is C 7
Each represents 15 beads.
There are 510 beads in the box.
$∴$ Total number of symbols needed for representing 510 beads $= \frac{510}{15} = 34$
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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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?

The correct option is C 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 present on the graph = 10 + 9 + 8 = 27 ∴ Number of symbols to be drawn to represent yellow beads = 34 - 27 = 7

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?