Fill in the blanks.
65% 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.
65% =
65100 =
132080% =
80100 =
451320 of the boys =
45 of the girls
Make the numerators the same using the LCM of 13 and 4.
LCM of 13 and 4 = 52
13 x 420 x 4 of the boys =
4 x 135 x 13 of the girls
5280 of the boys =
5265 of the girls
The totals are shown in the denominators.
Number of boys = 80 u
(b)
Number of girls = 65 u
(c)
Total number of boys and girls
= 80 u + 65 u
= 145 u
(d)
Difference between the number of boys and girls
= 80 u - 65 u
= 15 u
Answer(s): (a) 80; (b) 65; (c) 145; (d) 15