Fill in the blanks.
At a gathering,
716 of the boys and
14 of the girls and
1019 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 -
716=
916Fraction of the girls who remained
= 1 -
14 =
34Fraction of the adults who remained
= 1 -
1019 =
919The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 9, 3 and 9 = 9
9 x 116 x 1 of the boys =
3 x 34 x 3 of the girls =
9 x 119 x 1 of the adults
916 of the boys =
912 of the girls =
919 of the adults
Boys : Girls : Adults
16 : 12 : 19
(a)
Number of boys at first = 16 u
(b)
Number of girls at first = 12 u
(c)
Number of adults at first = 19 u
(d)
Number of people who remained
= 3 x 9 u
= 27 u
Answer(s): (a) 16; (b) 12; (c) 19; (d) 27