Fill in the blanks.
30% 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.
30% =
30100 =
31065% =
65100 =
1320310 of the girls =
1320 of the boys
Make the numerators the same using the LCM of 3 and 13.
LCM of 3 and 13 = 39
3 x 1310 x 13 of the girls =
13 x 320 x 3 of the boys
39130 of the girls =
3960 of the boys
The totals are shown in the denominators.
Number of girls = 130 u
(b)
Number of boys = 60 u
(c)
Total number of girls and boys
= 130 u + 60 u
= 190 u
(d)
Difference between the number of girls and boys
= 130 u - 60 u
= 70 u
Answer(s): (a) 130; (b) 60; (c) 190; (d) 70