Fill in the blanks.
50% 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.
50% =
50100 =
1265% =
65100 =
132012 of the girls =
1320 of the boys
Make the numerators the same using the LCM of 1 and 13.
LCM of 1 and 13 = 13
1 x 132 x 13 of the girls =
13 x 120 x 1 of the boys
1326 of the girls =
1320 of the boys
The totals are shown in the denominators.
Number of girls = 26 u
(b)
Number of boys = 20 u
(c)
Total number of girls and boys
= 26 u + 20 u
= 46 u
(d)
Difference between the number of girls and boys
= 26 u - 20 u
= 6 u
Answer(s): (a) 26; (b) 20; (c) 46; (d) 6