
Can someone please help with this problem ?
Can someone please help with this problem ?
Total number of pens -> 100u
Since green pens was ¼ of blue and red combined,
Green pen -> 1p
Blue + Red -> 4p
1p + 4p = 100u
1p = 20u
Green pen -> 20u or 20%
Blue pen -> 32u or 32% (given)
Red pen -> 100u – 20u – 32u = 48u
(a) Percentage of red pens -> 48%
(b) Blue : Green : Red = 32 : 20 : 48 = 8 : 5 : 12
50% of blue pen -> 32u × 50% = 16u
16u = 8
1u = 0.5
(c) Number of red pens -> 48 × 0.5 = 24