Fill in the blanks.
25% of the girls are equal to 90% 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.
25% =
25100 =
1490% =
90100 =
91014 of the girls =
910 of the boys
Make the numerators the same using the LCM of 1 and 9.
LCM of 1 and 9 = 9
1 x 94 x 9 of the girls =
9 x 110 x 1 of the boys
936 of the girls =
910 of the boys
The totals are shown in the denominators.
Number of girls = 36 u
(b)
Number of boys = 10 u
(c)
Total number of girls and boys
= 36 u + 10 u
= 46 u
(d)
Difference between the number of girls and boys
= 36 u - 10 u
= 26 u
Answer(s): (a) 36; (b) 10; (c) 46; (d) 26