# maths

The cost of a gift is shared amongst 3 kids. Keith paid €480 more than jack. Keith paid €220 more than the total amount paid by Jack and tim. Jack paid 80 more than tim. How much did the present cost?

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1. K = 480 + J
K= 220 + J + T
J = 80 + T
J-80 = T

K = 220 + J + T substitute from above

480 + J = 220 + J + J -80
480 + J = 140 + 2J
340 = Jack
Tim is 80 less or 260
Kevin is 480 more than Jack or 820

Add up the 3 values to get the cost of the present.

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