There are only HB and F type pencils in the store. The ratio of the number of HB to F is 7 : 3. If there are 15F type pencils, h
ow many pencils are there altogether?
1 answer:
Answer:
50
Step-by-step explanation:
<u>Ratio is</u>
<u>Total number is</u>
<u>Since F type pencils number is known:</u>
<u>Then total number is:</u>
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