Fill in the blanks.
At a gathering,
1113 of the boys and
78 of the girls and
67 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 -
1113=
213Fraction of the girls who remained
= 1 -
78 =
18Fraction of the adults who remained
= 1 -
67 =
17The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 2, 1 and 1 = 2
2 x 113 x 1 of the boys =
1 x 28 x 2 of the girls =
1 x 27 x 2 of the adults
213 of the boys =
216 of the girls =
214 of the adults
Boys : Girls : Adults
13 : 16 : 14
(a)
Number of boys at first = 13 u
(b)
Number of girls at first = 16 u
(c)
Number of adults at first = 14 u
(d)
Number of people who remained
= 3 x 2 u
= 6 u
Answer(s): (a) 13; (b) 16; (c) 14; (d) 6