Fill in the blanks.
10% 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.
10% =
10100 =
11085% =
85100 =
1720110 of the boys =
1720 of the girls
Make the numerators the same using the LCM of 1 and 17.
LCM of 1 and 17 = 17
1 x 1710 x 17 of the boys =
17 x 120 x 1 of the girls
17170 of the boys =
1720 of the girls
The totals are shown in the denominators.
Number of boys = 170 u
(b)
Number of girls = 20 u
(c)
Total number of boys and girls
= 170 u + 20 u
= 190 u
(d)
Difference between the number of boys and girls
= 170 u - 20 u
= 150 u
Answer(s): (a) 170; (b) 20; (c) 190; (d) 150