Question

Jiaqi, Gwen and Patricia painted the walls of a room together. Jiaqi painted 4/7 of the walls. Gwen and Patricia painted an equal amount of the remaining area of the walls. Jiaqi painted 2/5m2? more than the area that Gwen and Patricia each painted. Find the total area of the walls that they painted. Give your answer as a mixed number in its simplest form​

Answer 1

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J : G : P : Total

4 : 1.5 : 1.5 : 7 (×2)

8 : 3 : 3 : 14

8u – 3u = 5u

5u = 2/5

1u = 2/25

14u = 2/25 m2 × 14

= 28/25 m2

= 1 3/25 m2