Fill in the blanks.
At a gathering,
13 of the boys and
58 of the girls and
23 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 -
13=
23Fraction of the girls who remained
= 1 -
58 =
38Fraction of the adults who remained
= 1 -
23 =
13The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 2, 3 and 1 = 6
2 x 33 x 3 of the boys =
3 x 28 x 2 of the girls =
1 x 63 x 6 of the adults
69 of the boys =
616 of the girls =
618 of the adults
Boys : Girls : Adults
9 : 16 : 18
(a)
Number of boys at first = 9 u
(b)
Number of girls at first = 16 u
(c)
Number of adults at first = 18 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 9; (b) 16; (c) 18; (d) 18