Mathematics, 01.11.2020 14:00, chutcherson020

The ratio of the price of a pen to the price of a ruler is 4:3. If the price of a ruler increases by 70p, then the ratio becomes 4:5.
Complete these sentences.
(a) The price of a pen is £
(b) The price of a ruler before the increase is £

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The ratio of the price of a pen to the price of a ruler is 4:3. If the price of a ruler increases b...