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# Very weird maths question :/ watch

1. Xiang recieves her gas bill. She used 1937 units of gas. She pays £0.0842 for the first 512 units and £0.0786 for the remainder. Tax is added at 5% of the total.

What is Xiang's total gas bill to the nearest penny?

Any ideas?

I get 163p some people are saying it is 17p
2. First step:
(£0.0842*512)
This gives you the cost for the first 512 units

Second step:
(£0.0786+(1937-512))
This gives you the cost of the remaining units

Third step:
Add these 2 values together to get the total

Step 4:
Calculate 5% of the total by multiplying by 5/100

Step 5:
Add the 5% to the total
3. (Original post by Reversed Flash)
Xiang recieves her gas bill. She used 1937 units of gas. She pays £0.0842 for the first 512 units and £0.0786 for the remainder. Tax is added at 5% of the total.

What is Xiang's total gas bill to the nearest penny?

Any ideas?

I get 163p some people are saying it is 17p
Hey, please don't start multiple threads for the same question. I've moved your other one to the maths forum as it was getting more useful advise and I'll close this one now.

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Updated: October 12, 2017
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