Fill in the blanks.
0.8 of the boys are equal to
57 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 decimal and fraction into units.
0.8 =
810 =
4545 of the boys =
57 of the girls
Make the numerators the same.
LCM of 4 and 5 = 20
4 x 55 x 5 of the boys =
5 x 47 x 4 of the girls
2025 of the boys =
2028 of the girls
Number of boys = 25 u
(b)
Number of girls = 28 u
(c)
Total number of boys and girls
= 25 u + 28 u
= 53 u
(d)
Difference between the number of girls and boys
= 28 u - 25 u
= 3 u
Answer(s): (a) 25; (b) 28; (c) 53; (d) 3