Fill in the blanks.
At a gathering,
47 of the boys and
12 of the girls and
713 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 -
47=
37Fraction of the girls who remained
= 1 -
12 =
12Fraction of the adults who remained
= 1 -
713 =
613The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 3, 1 and 6 = 6
3 x 27 x 2 of the boys =
1 x 62 x 6 of the girls =
6 x 113 x 1 of the adults
614 of the boys =
612 of the girls =
613 of the adults
Boys : Girls : Adults
14 : 12 : 13
(a)
Number of boys at first = 14 u
(b)
Number of girls at first = 12 u
(c)
Number of adults at first = 13 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 14; (b) 12; (c) 13; (d) 18