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A city has 3 new houses for every 7 old houses. If there are 21 new houses in the city, how many old houses are there? A. 52 B. 49 C. 51 D. 47

A city has 3 new houses for every 7 old houses. If there are 21 new houses in the city, how many old houses are there? A. 52 B. 49 C. 51 D. 47
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1 vote
A city has 3 new houses for every 7 old houses. If there are 21 new houses in the city, how many old houses are there?

A.
52
B.
49
C.
51
D.
47

User Avi Fatal
by
8.5k points

1 Answer

1 vote

Answer:

B. 49

Explanation:

21/3 = 7

7*7 = 49

User Keyma
by
8.4k points
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