Question

compound Ratio of 4:5 and 2:9​

Answer 1

Step-by-step explanation:

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Answer 2

SOLUTION

Formula:

The compounded ratio of the two ratios a : b and c : d is the ratio (a × c) : (b × d).

Calculation:

Compound ratio of 4 : 5 and 2 : 9 = (4 × 2) : (5 × 9)

= 8 : 45