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4 years ago

13

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:

Flura [38]4 years ago

5 0

Answer:

50

Step-by-step explanation:

<u>Ratio is</u>

7 : 3

<u>Total number is</u>

7x + 3x = 10x

<u>Since F type pencils number is known:</u>

3x = 15
x = 15/3
x = 5

<u>Then total number is:</u>

10x = 10 *5 = 50

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