Fill in the blanks.
35% of the boys are equal to 85% 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.
35% =
35100 =
72085% =
85100 =
1720720 of the boys =
1720 of the girls
Make the numerators the same using the LCM of 7 and 17.
LCM of 7 and 17 = 119
7 x 1720 x 17 of the boys =
17 x 720 x 7 of the girls
119340 of the boys =
119140 of the girls
The totals are shown in the denominators.
Number of boys = 340 u
(b)
Number of girls = 140 u
(c)
Total number of boys and girls
= 340 u + 140 u
= 480 u
(d)
Difference between the number of boys and girls
= 340 u - 140 u
= 200 u
Answer(s): (a) 340; (b) 140; (c) 480; (d) 200