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Irina18 [472]
2 years ago
9

Mr Lim put some red pens and blue pens into a box . The ratio of the number of red pens to the number of blue pens was 3: 4 .He

pet another 20 red pens into the box and the ratio of the number of red pens to the number of blue pens became 2:1 (a) How many red pens were there in the end? (b) How many blue pens were there?
Mathematics
1 answer:
gogolik [260]2 years ago
4 0

Answer:

a) There were 32 red pens and b) 16 blue pens.

Step-by-step explanation:

3:4

for 3:4 to be 2:1 we should add 5 in order for it to be 8:4 (2:1)

20 divided by 5 is equal to 4

8:4

8 times 4 is equal to 32

4 times 4 is equal to 16

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Answer:

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3 years ago
11<br> Which improper fraction is equivalent to 5 ?<br> 40
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Answer:

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3 0
3 years ago
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Alexandra [31]

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5 0
3 years ago
2. If you pay a one-time fee of $30, you can
VikaD [51]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

One time fee = $30

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