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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!
Date Posted: 6 years ago
Views: 509
Let x be the average number of paper planes folded.
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
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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