Blue Case
In a display case with 21 ribbons , one -third are blue and two-thirds are pink. To obtain a display case in w
In a display case with 21 ribbons , one -third are blue and two-thirds are pink. To obtain a display case in which one quarter are blue, how many pink should be added ?
Okay, there are currently (2/3)21 = 14 pink.
And if 1/4 are to be blue, then (3/4) need to be pink.
So, letting x be number of pink to be added, then
(14+x)/(21+x) = 3/4.
Or, cross multiplying, 56+4x=63+3x, or
x=7.
So, 7 pinks should be added.
Cold Case ‘Forever Blue’ – Jimmy/Coop scenes (part 1/2)
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