Fill in the blanks.
50% of the girls are equal to 70% of the boys.
- Number of girls = _____ u
- Number of boys = _____ u
- Total number of girls and boys = _____ u
- Difference between the number of girls and boys = _____ u
(a)
Change percentage into units.
50% =
50100 =
1270% =
70100 =
71012 of the girls =
710 of the boys
Make the numerators the same using the LCM of 1 and 7.
LCM of 1 and 7 = 7
1 x 72 x 7 of the girls =
7 x 110 x 1 of the boys
714 of the girls =
710 of the boys
The totals are shown in the denominators.
Number of girls = 14 u
(b)
Number of boys = 10 u
(c)
Total number of girls and boys
= 14 u + 10 u
= 24 u
(d)
Difference between the number of girls and boys
= 14 u - 10 u
= 4 u
Answer(s): (a) 14; (b) 10; (c) 24; (d) 4