a There are 240 buttons in a container. 30% of the buttons are red, 25% of them are yellow and the rest are blue. (a) How many red buttons are there? (b) How many blue buttons are there?
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Step-by-step explanation:
No. of buttons in a container - 240
Percentage of buttons that are red-30%
Percentage of buttons that are yellow-25%
No. of buttons that are red- 30/100×240 - 72
No. of buttons that are yellow- 25/100×240-60
72+62=134
No. of buttons that are blue =240-134=106
• There are 72 red buttons and 106 blue buttons
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