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Mathematics, 05.07.2020 16:01 paulawells11

I earn £30 000 in 12 months. 20% of this is deducted for tax.
x% is deducted for National Insurance.
At the end of each month I have £1800 left.
Work out the value of x.

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I earn £30 000 in 12 months. 20% of this is deducted for tax.
x% is deducted for National Ins...
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