BECE Mathematics 2010 Paper

‌‌ Number of pieces ‌=‌

‌ Total Length ‌

‌ Size to cut ‌

‌5‌

1

2

=‌

5×2+1

2

‌5‌

1

2

=‌

10+1

2

‌5‌

1

2

=‌

11

2

‌‌ Total length ‌=121m
‌‌ Size to cut ‌=‌

11

2

m
Number of pieces =121m+‌

11

2

m
Reciprocate the fraction (numerator becomes denominator and denominator becomes numerator) at the right
and change the division (÷) to multiplication (x) sign.

Number of pieces =121×‌

2

11

Note:
1. m cancels each other
2. 11 divides itself 1 and 121, 11 times
3. 11×2=22
Number of pieces =22