Fill in the blanks.
35% of the girls are equal to 65% 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.
35% =
35100 =
72065% =
65100 =
1320720 of the girls =
1320 of the boys
Make the numerators the same using the LCM of 7 and 13.
LCM of 7 and 13 = 91
7 x 1320 x 13 of the girls =
13 x 720 x 7 of the boys
91260 of the girls =
91140 of the boys
The totals are shown in the denominators.
Number of girls = 260 u
(b)
Number of boys = 140 u
(c)
Total number of girls and boys
= 260 u + 140 u
= 400 u
(d)
Difference between the number of girls and boys
= 260 u - 140 u
= 120 u
Answer(s): (a) 260; (b) 140; (c) 400; (d) 120