Fill in the blanks.
35% of the girls are equal to 40% 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.
35% =
35100 =
72040% =
40100 =
25720 of the girls =
25 of the boys
Make the numerators the same using the LCM of 7 and 2.
LCM of 7 and 2 = 14
7 x 220 x 2 of the girls =
2 x 75 x 7 of the boys
1440 of the girls =
1435 of the boys
The totals are shown in the denominators.
Number of girls = 40 u
(b)
Number of boys = 35 u
(c)
Total number of girls and boys
= 40 u + 35 u
= 75 u
(d)
Difference between the number of girls and boys
= 40 u - 35 u
= 5 u
Answer(s): (a) 40; (b) 35; (c) 75; (d) 5