Fill in the blanks.
At a gathering,
27 of the boys and
13 of the girls and
111 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 -
27=
57Fraction of the girls who remained
= 1 -
13 =
23Fraction of the adults who remained
= 1 -
111 =
1011The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 5, 2 and 10 = 10
5 x 27 x 2 of the boys =
2 x 53 x 5 of the girls =
10 x 111 x 1 of the adults
1014 of the boys =
1015 of the girls =
1011 of the adults
Boys : Girls : Adults
14 : 15 : 11
(a)
Number of boys at first = 14 u
(b)
Number of girls at first = 15 u
(c)
Number of adults at first = 11 u
(d)
Number of people who remained
= 3 x 10 u
= 30 u
Answer(s): (a) 14; (b) 15; (c) 11; (d) 30