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# How can i answer this vector?? watch

1. How could i like answer question b on this?

https://gyazo.com/1ee81e7a79fafce1317d8f9db7e7e2ec
2. (Original post by Wazir12345)
How could i like answer question b on this?

https://gyazo.com/1ee81e7a79fafce1317d8f9db7e7e2ec
The key bit is the ratio in the question.

If for example we had that A:B and B:C make up A:C in a 1:1 ratio, that just means that for every length A:B is, B:C is the same length. Eg If A to B is 5cm then B to C is also 5cm to give a total length of 10cm. Now if A:B and B:C make up A:B in a 1:2 ratio, that means for every length A:B is, there is twice that length in B:C, so if A:B was 20cm then B:C is 40cm and the total is 60cm.

In this question you have that A:B and B:C are a 2:3 ratio. You can simplify this to 1:1.5. So what does this mean?

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Updated: October 6, 2017
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