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(a) 1.06 m = 106 cm

106/8 = 13 1/4

So he can cut at most 13 strips from the cupboard. The strip that had width 8/4 = 2 cm was not counted.

(b) The length of each strip is 0.7 m = 70 cm 

If the overlapping strip is 15 cm, then 2 strips will have length of 70 * 2 – 15 = 125 cm.

Or length of n strips = 70n – 15(n – 1)  cm = 55n + 15

If there were 13 strips, the length of the band = 55* 13 + 15 =  730 cm = 7.3 m

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