Fill in the blanks.
At a gathering,
37 of the boys and
35 of the girls and
12 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 -
37=
47Fraction of the girls who remained
= 1 -
35 =
25Fraction of the adults who remained
= 1 -
12 =
12The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 4, 2 and 1 = 8
4 x 27 x 2 of the boys =
2 x 45 x 4 of the girls =
1 x 82 x 8 of the adults
814 of the boys =
820 of the girls =
816 of the adults
Boys : Girls : Adults
14 : 20 : 16
(a)
Number of boys at first = 14 u
(b)
Number of girls at first = 20 u
(c)
Number of adults at first = 16 u
(d)
Number of people who remained
= 3 x 8 u
= 24 u
Answer(s): (a) 14; (b) 20; (c) 16; (d) 24