Question:
William joined 4 identical square frames as shown below. All the 13 sides of the square frames were tied with balloons.
He tied the same number of big balloons on each side of the square frame. Between every 2 big balloons, he tied 5 small balloons.
(a) If William had 30 big balloons, what was the greatest number of big balloons he could tie on each side of the square frame?
(b) How many big and small balloons would he need altogether if he tied 10 big balloons on each side of the square frame?
Solution:
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