Fill in the blanks.
55% of the boys are equal to 80% of the girls.
- Number of boys = _____ u
- Number of girls = _____ u
- Total number of boys and girls = _____ u
- Difference between the number of boys and girls = _____ u
(a)
Change percentage into units.
55% =
55100 =
112080% =
80100 =
451120 of the boys =
45 of the girls
Make the numerators the same using the LCM of 11 and 4.
LCM of 11 and 4 = 44
11 x 420 x 4 of the boys =
4 x 115 x 11 of the girls
4480 of the boys =
4455 of the girls
The totals are shown in the denominators.
Number of boys = 80 u
(b)
Number of girls = 55 u
(c)
Total number of boys and girls
= 80 u + 55 u
= 135 u
(d)
Difference between the number of boys and girls
= 80 u - 55 u
= 25 u
Answer(s): (a) 80; (b) 55; (c) 135; (d) 25