Fill in the blanks.
At a gathering,
23 of the boys and
35 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 -
23=
13Fraction of the girls who remained
= 1 -
35 =
25Fraction 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 1, 2 and 1 = 6
1 x 63 x 6 of the boys =
2 x 35 x 3 of the girls =
1 x 62 x 6 of the adults
618 of the boys =
615 of the girls =
612 of the adults
Boys : Girls : Adults
18 : 15 : 12
(a)
Number of boys at first = 18 u
(b)
Number of girls at first = 15 u
(c)
Number of adults at first = 12 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 18; (b) 15; (c) 12; (d) 18