Fill in the blanks.
At a gathering,
910 of the boys and
12 of the girls and
38 of the adults left after 1 hour.
The number of boys and girls and adults who left were the same.
- Number of boys at first = _____ u
- Number of girls at first = _____ u
- Number of adults at first = _____ u
- Difference between the number of girls and boys = _____ u
(a)
Change fraction into units.
Make the numerators the same.
LCM of 9, 1 and 3 = 9
9 x 110 x 1 of the boys =
1 x 92 x 9 of the girls =
3 x 38 x 3 of the adults
910 of the boys =
918 of the girls =
924 of the adults
Boys : Girls : Adults
10 : 18 : 24
Number of boys = 10 u
(b)
Number of girls = 18 u
(c)
Number of adults = 24 u
(d)
Difference between the number of girls and boys
= 18 u - 10 u
= 8 u
Answer(s): (a) 10; (b) 18; (c) 24; (d) 8