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[——u——][—-u—-][—-u—-]  = Total puffs = 3u

[-Curry—-][——-Sardine—-]

[1/2u][1/4(3u)][——35——–]     After giving away 1/2 of curry puffs and 35 sardine puffs

 

(1/2)u +35 = (3/4)(3u)

2u +140 = 9u

7u = 140

u = 20

Puffs left = (1/4)(3 x 20) = 15

1 Reply 1 Like ✔Accepted Answer

Thanks 

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1 Reply 2 Likes

Thanks a lot 

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