Fill in the blanks.
At a gathering,
58 of the boys and
35 of the girls and
17 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 -
58=
38Fraction of the girls who remained
= 1 -
35 =
25Fraction of the adults who remained
= 1 -
17 =
67The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 3, 2 and 6 = 6
3 x 28 x 2 of the boys =
2 x 35 x 3 of the girls =
6 x 17 x 1 of the adults
616 of the boys =
615 of the girls =
67 of the adults
Boys : Girls : Adults
16 : 15 : 7
(a)
Number of boys at first = 16 u
(b)
Number of girls at first = 15 u
(c)
Number of adults at first = 7 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 16; (b) 15; (c) 7; (d) 18