Fill in the blanks.
30% of the girls are equal to 95% 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.
30% =
30100 =
31095% =
95100 =
1920310 of the girls =
1920 of the boys
Make the numerators the same using the LCM of 3 and 19.
LCM of 3 and 19 = 57
3 x 1910 x 19 of the girls =
19 x 320 x 3 of the boys
57190 of the girls =
5760 of the boys
The totals are shown in the denominators.
Number of girls = 190 u
(b)
Number of boys = 60 u
(c)
Total number of girls and boys
= 190 u + 60 u
= 250 u
(d)
Difference between the number of girls and boys
= 190 u - 60 u
= 130 u
Answer(s): (a) 190; (b) 60; (c) 250; (d) 130