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Asha and Lucy are selling pencils in a school shop. They sell boxes of pencils and single pencils. Asha sells 7 boxes of pencils and 22 single pencils. Lucy sells 5 boxes of pencils and 2 single pencils. Asha sells twice as many pencils as Lucy. Work out how many pencils there are in a box

 Mar 5, 2020
 #1
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L = 5 b + 2

A = 2 *L = 2 (5b+2) = 7b+22

 

          10b + 4 = 7b+22

             3b = 18

                 b = 6 pencils   

 Mar 5, 2020

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