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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