Fill in the blanks.
35% of the boys are equal to 80% 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 =
72080% =
80100 =
45720 of the boys =
45 of the girls
Make the numerators the same using the LCM of 7 and 4.
LCM of 7 and 4 = 28
7 x 420 x 4 of the boys =
4 x 75 x 7 of the girls
2880 of the boys =
2835 of the girls
The totals are shown in the denominators.
Number of boys = 80 u
(b)
Number of girls = 35 u
(c)
Total number of boys and girls
= 80 u + 35 u
= 115 u
(d)
Difference between the number of boys and girls
= 80 u - 35 u
= 45 u
Answer(s): (a) 80; (b) 35; (c) 115; (d) 45