Fill in the blanks.
85% 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.
85% =
85100 =
172095% =
95100 =
19201720 of the boys =
1920 of the girls
Make the numerators the same using the LCM of 17 and 19.
LCM of 17 and 19 = 323
17 x 1920 x 19 of the boys =
19 x 1720 x 17 of the girls
323380 of the boys =
323340 of the girls
The totals are shown in the denominators.
Number of boys = 380 u
(b)
Number of girls = 340 u
(c)
Total number of boys and girls
= 380 u + 340 u
= 720 u
(d)
Difference between the number of boys and girls
= 380 u - 340 u
= 40 u
Answer(s): (a) 380; (b) 340; (c) 720; (d) 40