Fill in the blanks.
30% of the girls are equal to 50% 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.
30% =
30100 =
31050% =
50100 =
12310 of the girls =
12 of the boys
Make the numerators the same using the LCM of 3 and 1.
LCM of 3 and 1 = 3
3 x 110 x 1 of the girls =
1 x 32 x 3 of the boys
310 of the girls =
36 of the boys
The totals are shown in the denominators.
Number of girls = 10 u
(b)
Number of boys = 6 u
(c)
Total number of girls and boys
= 10 u + 6 u
= 16 u
(d)
Difference between the number of girls and boys
= 10 u - 6 u
= 4 u
Answer(s): (a) 10; (b) 6; (c) 16; (d) 4