Question

95. Which number must be added to each term of the ratio 5: 7 to make it 11: 12 is?

a. 22

b. 20

c. 17

d. 18




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Answer 1

Which number must be added to each term of the ratio 5: 7 to make it 11: 12 is?

Answer:

k:1=17

Step-by-step explanation:

let the ratio is k:1

5/7+k=11/12

5/7+7k/7=11/12

5+7k=11*7/12

7k=77/12-5

k=77/12*7-60/12*7

k=17/84

k:1=17:84

17