Fill in the blanks.
At a gathering,
1517 of the boys and
56 of the girls and
911 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 -
1517=
217Fraction of the girls who remained
= 1 -
56 =
16Fraction of the adults who remained
= 1 -
911 =
211The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 2, 1 and 2 = 2
2 x 117 x 1 of the boys =
1 x 26 x 2 of the girls =
2 x 111 x 1 of the adults
217 of the boys =
212 of the girls =
211 of the adults
Boys : Girls : Adults
17 : 12 : 11
(a)
Number of boys at first = 17 u
(b)
Number of girls at first = 12 u
(c)
Number of adults at first = 11 u
(d)
Number of people who remained
= 3 x 2 u
= 6 u
Answer(s): (a) 17; (b) 12; (c) 11; (d) 6