What must be added to the numerator and 7/19 denomenator of so that they bear the same ratio as 20 bears to 40? (a) 5 (b) 7 (c) 11 (d) 12 (e) 3
Answers
Answer:
18-Jul-2019 — Let the number that should be added=x. So 7+x/13+x=2/3. 3(7+x)=2(13+x). 21+3x=26+2x. 3x-2x=26–21. x=5. So 5 should be added to both the numbers so that ...
11 answers
· 5 votes: (7+X) : (13+X) = 2 : 3 3*(7+X) = 2*(13+X) 21 + 3x = 26 + 2x 3x - 2x = 26
Explanation:
Answer:
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