Boxes A and B contain unbreakable hearts and breakable hearts in the ratio of 7 ∶ 2 and 3 ∶ 2 respectively. In what ratio should quantities of hearts be taken from A and B and added into Box C so that unbreakable hearts and breakable hearts in box C will be in the ratio of 2 ∶ 1.
Boxes A and B contain unbreakable hearts and breakable hearts in the ratio of 7 ∶ 2 and 3 ∶ 2 respectively. In what ratio should quantities of hearts be taken from A and B and added into Box C so that unbreakable hearts and breakable hearts in box C will be in the ratio of 2 ∶ 1. Correct Answer 3 ∶ 5
Given:
Ratio of unbreakable and breakable hearts in box A = 7 ∶ 2
Ratio of unbreakable and breakable hearts in box B = 3 ∶ 2
Ratio of unbreakable and breakable hearts in box C = 2 ∶ 1
Concept used:
Calculations:
The ratio of unbreakable and breakable heart in box A = 7 ∶ 2
⇒ 7 × 5 ∶ 2 × 5
⇒ 35 ∶ 10
The ratio of unbreakable and breakable heart in box B = 3∶ 2
⇒ 3 × 9 ∶ 2 × 9
⇒ 27 ∶ 18
The ratio of unbreakable and breakable heart in box C = 2 ∶ 1
⇒ 2 × 15 ∶ 1 × 15
⇒ 30 ∶ 15
According to allegation rule (For unbreakable heart)
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∴ The ratio of quantities of heart taken out from A and B and added into Box C is 3 ∶ 5.