Mathematics, 06.12.2021 01:50 jangk

In a bag there are pink buttons, yellow buttons and blue buttons. There are five times as many pink buttons as yellow buttons.
number of yellow buttons : number of blue buttons = 4:7
One button is selected at random.
Work out the probability that the button is either pink or blue.
Give your answer as a fraction in its simplest form.

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In a bag there are pink buttons, yellow buttons and blue buttons. There are five times as many pin...