Cheyenne Liu's answer to Al's Primary 5 Maths Whole Numbers Singapore question.
done
1 Upvotes
clear -1 Downvotes
Part a:
Number of rectangles = 3 x 59 = 186
Number of stars = 58 x 2 + 3 = 119
Total shapes = 119 + 186 = 305
Part b:
429/3 = 143
Part c:
Total number of shapes = Rectangles + Stars = (3+3) + (3+2) = 3+3+5n
n = number of sequence
621-3-3=615
615/5 = 123
n = 123 (Ans)
Number of rectangles = 3 x 59 = 186
Number of stars = 58 x 2 + 3 = 119
Total shapes = 119 + 186 = 305
Part b:
429/3 = 143
Part c:
Total number of shapes = Rectangles + Stars = (3+3) + (3+2) = 3+3+5n
n = number of sequence
621-3-3=615
615/5 = 123
n = 123 (Ans)
Date Posted:
5 years ago
360 Tutoring Program
The total number of shapes = 5n + 1 , not 5n + 6