Fill in the blanks.
At a gathering,
45 of the boys and
14 of the girls and
29 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 4, 1 and 2 = 4
4 x 15 x 1 of the boys =
1 x 44 x 4 of the girls =
2 x 29 x 2 of the adults
45 of the boys =
416 of the girls =
418 of the adults
Boys : Girls : Adults
5 : 16 : 18
Number of boys = 5 u
(b)
Number of girls = 16 u
(c)
Number of adults = 18 u
(d)
Difference between the number of girls and boys
= 16 u - 5 u
= 11 u
Answer(s): (a) 5; (b) 16; (c) 18; (d) 11