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## Question

primary 6 | Maths
| Algebra

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please kindly show clear working while using Algrebra to solve this question. Thanks a lot!

Now we know that Class 6D folded 3 more than the average.

So number of paper planes folded by Class 6D = x + 3

Total number of paper planes folded = 4x

Total number of paper planes folded

also= x + 3 + 40 + 30 + 20

= x + 93

x + 93 = 4x

3x = 93

x = 31

So total number = 4x

= 4 x 31

= 124

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