Fill in the blanks.
At a gathering,
511 of the boys and
47 of the girls and
35 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 -
511=
611Fraction of the girls who remained
= 1 -
47 =
37Fraction of the adults who remained
= 1 -
35 =
25The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 6, 3 and 2 = 6
6 x 111 x 1 of the boys =
3 x 27 x 2 of the girls =
2 x 35 x 3 of the adults
611 of the boys =
614 of the girls =
615 of the adults
Boys : Girls : Adults
11 : 14 : 15
(a)
Number of boys at first = 11 u
(b)
Number of girls at first = 14 u
(c)
Number of adults at first = 15 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 11; (b) 14; (c) 15; (d) 18