Fill in the blanks.
At a gathering,
49 of the boys and
111 of the girls and
38 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 -
49=
59Fraction of the girls who remained
= 1 -
111 =
1011Fraction of the adults who remained
= 1 -
38 =
58The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 5, 10 and 5 = 10
5 x 29 x 2 of the boys =
10 x 111 x 1 of the girls =
5 x 28 x 2 of the adults
1018 of the boys =
1011 of the girls =
1016 of the adults
Boys : Girls : Adults
18 : 11 : 16
(a)
Number of boys at first = 18 u
(b)
Number of girls at first = 11 u
(c)
Number of adults at first = 16 u
(d)
Number of people who remained
= 3 x 10 u
= 30 u
Answer(s): (a) 18; (b) 11; (c) 16; (d) 30