Fill in the blanks.
40% 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.
40% =
40100 =
2565% =
65100 =
132025 of the girls =
1320 of the boys
Make the numerators the same using the LCM of 2 and 13.
LCM of 2 and 13 = 26
2 x 135 x 13 of the girls =
13 x 220 x 2 of the boys
2665 of the girls =
2640 of the boys
The totals are shown in the denominators.
Number of girls = 65 u
(b)
Number of boys = 40 u
(c)
Total number of girls and boys
= 65 u + 40 u
= 105 u
(d)
Difference between the number of girls and boys
= 65 u - 40 u
= 25 u
Answer(s): (a) 65; (b) 40; (c) 105; (d) 25