Fill in the blanks.
At a gathering,
313 of the boys and
16 of the girls and
16 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 -
313=
1013Fraction of the girls who remained
= 1 -
16 =
56Fraction of the adults who remained
= 1 -
16 =
56The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 10, 5 and 5 = 10
10 x 113 x 1 of the boys =
5 x 26 x 2 of the girls =
5 x 26 x 2 of the adults
1013 of the boys =
1012 of the girls =
1012 of the adults
Boys : Girls : Adults
13 : 12 : 12
(a)
Number of boys at first = 13 u
(b)
Number of girls at first = 12 u
(c)
Number of adults at first = 12 u
(d)
Number of people who remained
= 3 x 10 u
= 30 u
Answer(s): (a) 13; (b) 12; (c) 12; (d) 30