Fill in the blanks.
At a gathering,
14 of the boys and
1319 of the girls and
12 of the adults left after 1 hour.
The number of boys, girls, and adults who remained were the same.
- Number of boys at first = _____ u
- Number of girls at first = _____ u
- Number of adults at first = _____ u
- Number of people who remained = _____ u
(a)
Change fraction into units.
Fraction of the boys who remained
= 1 -
14=
34Fraction of the girls who remained
= 1 -
1319 =
619Fraction of the adults who remained
= 1 -
12 =
12The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 3, 6 and 1 = 6
3 x 24 x 2 of the boys =
6 x 119 x 1 of the girls =
1 x 62 x 6 of the adults
68 of the boys =
619 of the girls =
612 of the adults
Boys : Girls : Adults
8 : 19 : 12
(a)
Number of boys at first = 8 u
(b)
Number of girls at first = 19 u
(c)
Number of adults at first = 12 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 8; (b) 19; (c) 12; (d) 18