Q: Red, green and pink tokens are kept in a bag, the ratio of red and green tokens is 5 : 11 while the ratio of pink and red tokens is 7 : 15. What will be the ratio of green and pink tokens?
A.
77 : 75
B.
11 : 7
C.
33 : 7
D.
75 : 77
Correct Answer:
Option C - Pink : Red = 7 : 15
Red : Green = 5 : 11
Then, Pink : Red : Green = 7 × 5 : 5 × 15 : 15 × 11
= 35 : 75 : 165
Green : Pink = 165 : 35 = 33 : 7
C. Pink : Red = 7 : 15
Red : Green = 5 : 11
Then, Pink : Red : Green = 7 × 5 : 5 × 15 : 15 × 11
= 35 : 75 : 165
Green : Pink = 165 : 35 = 33 : 7
Explanations:
Pink : Red = 7 : 15
Red : Green = 5 : 11
Then, Pink : Red : Green = 7 × 5 : 5 × 15 : 15 × 11
= 35 : 75 : 165
Green : Pink = 165 : 35 = 33 : 7
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