Fill in the blanks.
At a gathering,
715 of the boys and
37 of the girls and
1119 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 -
715=
815Fraction of the girls who remained
= 1 -
37 =
47Fraction of the adults who remained
= 1 -
1119 =
819The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 8, 4 and 8 = 8
8 x 115 x 1 of the boys =
4 x 27 x 2 of the girls =
8 x 119 x 1 of the adults
815 of the boys =
814 of the girls =
819 of the adults
Boys : Girls : Adults
15 : 14 : 19
(a)
Number of boys at first = 15 u
(b)
Number of girls at first = 14 u
(c)
Number of adults at first = 19 u
(d)
Number of people who remained
= 3 x 8 u
= 24 u
Answer(s): (a) 15; (b) 14; (c) 19; (d) 24