Question

The length of three ribbons are in the ratio 7:5:9. If the sum of the lengths of the thre
find the length of the smallest ribbon.
11. Shyam lost his weight in the ratio 9:5. His original weight was 90 kg. What is his new
ro 70 rorpectively in a business and thei​

Answer 1

Answer:

let the common ratio be x

first ribbon= 7x

second ribbon=5x

third ribbon=9x

sum of the length of the three ribbons=42 cm

Step-by-step explanation:

7x + 5x + 9x = 42 cm

21x = 42 cm

x = 42/21 = 2cm

the smallest ribbon = 5x = 10 cm

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Answer 2

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