Fill in the blanks.
25% of the girls are equal to 85% of the boys.
- Number of girls = _____ u
- Number of boys = _____ u
- Total number of girls and boys = _____ u
- Difference between the number of girls and boys = _____ u
(a)
Change percentage into units.
25% =
25100 =
1485% =
85100 =
172014 of the girls =
1720 of the boys
Make the numerators the same using the LCM of 1 and 17.
LCM of 1 and 17 = 17
1 x 174 x 17 of the girls =
17 x 120 x 1 of the boys
1768 of the girls =
1720 of the boys
The totals are shown in the denominators.
Number of girls = 68 u
(b)
Number of boys = 20 u
(c)
Total number of girls and boys
= 68 u + 20 u
= 88 u
(d)
Difference between the number of girls and boys
= 68 u - 20 u
= 48 u
Answer(s): (a) 68; (b) 20; (c) 88; (d) 48