Step-by-step explanation:
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The ratio of new houses to antique houses in a village is 4 : 5 . If there are 12 new houses , how many antique houses are there ?
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✏ Let , the number of antique houses in a village be ' x ' .
Then , According to the question :

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Apply cross product property
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So, The number of antique houses in a village is 15.

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Step-by-step explanation:
hear is your answer in attachment
2,800-3,200
Explanation: multiply 35 and 40 by 80 since those are the variables
The value of the fractions will be:
1. 8 13/20
2. 2 4/5
3. 5/6
<h3>How to explain the fraction?</h3>
1. 6 1/4 + 2 2/5
LCM of 20
6 1/4 + 2 2/5.
6 5/20 + 2 8/20
= 8 13/20
2. 1 1/5 × 2 1/3
= 6/5 × 7/3
= 42/15
= 14/5
= 2 4/5
3. 3 1/3 - 2 1/2
= 3 2/6 - 2 3/6.
= 5/6
Learn more about fractions on:
brainly.com/question/17220365
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I think it would be 13 hours possibly