Fill in the blanks.
25% of the girls are equal to 60% 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 =
1460% =
60100 =
3514 of the girls =
35 of the boys
Make the numerators the same using the LCM of 1 and 3.
LCM of 1 and 3 = 3
1 x 34 x 3 of the girls =
3 x 15 x 1 of the boys
312 of the girls =
35 of the boys
The totals are shown in the denominators.
Number of girls = 12 u
(b)
Number of boys = 5 u
(c)
Total number of girls and boys
= 12 u + 5 u
= 17 u
(d)
Difference between the number of girls and boys
= 12 u - 5 u
= 7 u
Answer(s): (a) 12; (b) 5; (c) 17; (d) 7