Fill in the blanks.
At a gathering,
713 of the boys and
23 of the girls and
13 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 -
713=
613Fraction of the girls who remained
= 1 -
23 =
13Fraction of the adults who remained
= 1 -
13 =
23The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 6, 1 and 2 = 6
6 x 113 x 1 of the boys =
1 x 63 x 6 of the girls =
2 x 33 x 3 of the adults
613 of the boys =
618 of the girls =
69 of the adults
Boys : Girls : Adults
13 : 18 : 9
(a)
Number of boys at first = 13 u
(b)
Number of girls at first = 18 u
(c)
Number of adults at first = 9 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 13; (b) 18; (c) 9; (d) 18