Fill in the blanks.
At a gathering,
49 of the boys and
717 of the girls and
313 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 -
49=
59Fraction of the girls who remained
= 1 -
717 =
1017Fraction of the adults who remained
= 1 -
313 =
1013The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 5, 10 and 10 = 10
5 x 29 x 2 of the boys =
10 x 117 x 1 of the girls =
10 x 113 x 1 of the adults
1018 of the boys =
1017 of the girls =
1013 of the adults
Boys : Girls : Adults
18 : 17 : 13
(a)
Number of boys at first = 18 u
(b)
Number of girls at first = 17 u
(c)
Number of adults at first = 13 u
(d)
Number of people who remained
= 3 x 10 u
= 30 u
Answer(s): (a) 18; (b) 17; (c) 13; (d) 30