Fill in the blanks.
At a gathering,
59 of the boys and
12 of the girls and
1317 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 -
59=
49Fraction of the girls who remained
= 1 -
12 =
12Fraction of the adults who remained
= 1 -
1317 =
417The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 4, 1 and 4 = 4
4 x 19 x 1 of the boys =
1 x 42 x 4 of the girls =
4 x 117 x 1 of the adults
49 of the boys =
48 of the girls =
417 of the adults
Boys : Girls : Adults
9 : 8 : 17
(a)
Number of boys at first = 9 u
(b)
Number of girls at first = 8 u
(c)
Number of adults at first = 17 u
(d)
Number of people who remained
= 3 x 4 u
= 12 u
Answer(s): (a) 9; (b) 8; (c) 17; (d) 12