Fill in the blanks.
65% of the girls are equal to 85% 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.
65% =
65100 =
132085% =
85100 =
17201320 of the girls =
1720 of the boys
Make the numerators the same using the LCM of 13 and 17.
LCM of 13 and 17 = 221
13 x 1720 x 17 of the girls =
17 x 1320 x 13 of the boys
221340 of the girls =
221260 of the boys
The totals are shown in the denominators.
Number of girls = 340 u
(b)
Number of boys = 260 u
(c)
Total number of girls and boys
= 340 u + 260 u
= 600 u
(d)
Difference between the number of girls and boys
= 340 u - 260 u
= 80 u
Answer(s): (a) 340; (b) 260; (c) 600; (d) 80