The following question has three statements. Study the question and the statements and decide which of the statement(s) is necessary to answer the question. Find the compound ratio of a ∶ b and c ∶ d. I) The value of ratio a ∶ b is 11 ∶ 15. II) The value of ratio c ∶ d is 5 ∶ 3. III) The compound ratio of ratios a ∶d and c ∶ b is 11 ∶ 9.?

Either I or II and III
Either II or I and III
Either III or I and II
Any two
All three

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Either III or I and II

Compound ratio of a ∶ b and c ∶ d = ac ∶ bd

Considering statements I and II,

Compound ratio of a ∶ b and c ∶ d = (11 × 5) ∶ (15 × 3) = 11 ∶ 9

Considering statement III,

Compound ratio of a ∶ d and c ∶ b = ac ∶ bd

Compound ratio of a ∶ b and c ∶ d = 11 ∶ 9

∴ The question can be answered using either statement III or statements I and II

4 views Answered 2022-09-04 04:29

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