Fill in the blanks.
45% of the boys are equal to 95% of the girls.
- Number of boys = _____ u
- Number of girls = _____ u
- Total number of boys and girls = _____ u
- Difference between the number of boys and girls = _____ u
(a)
Change percentage into units.
45% =
45100 =
92095% =
95100 =
1920920 of the boys =
1920 of the girls
Make the numerators the same using the LCM of 9 and 19.
LCM of 9 and 19 = 171
9 x 1920 x 19 of the boys =
19 x 920 x 9 of the girls
171380 of the boys =
171180 of the girls
The totals are shown in the denominators.
Number of boys = 380 u
(b)
Number of girls = 180 u
(c)
Total number of boys and girls
= 380 u + 180 u
= 560 u
(d)
Difference between the number of boys and girls
= 380 u - 180 u
= 200 u
Answer(s): (a) 380; (b) 180; (c) 560; (d) 200