Fill in the blanks.
At a gathering,
1117 of the boys and
710 of the girls and
13 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 -
1117=
617Fraction of the girls who remained
= 1 -
710 =
310Fraction of the adults who remained
= 1 -
13 =
23The 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 117 x 1 of the boys =
3 x 210 x 2 of the girls =
2 x 33 x 3 of the adults
617 of the boys =
620 of the girls =
69 of the adults
Boys : Girls : Adults
17 : 20 : 9
(a)
Number of boys at first = 17 u
(b)
Number of girls at first = 20 u
(c)
Number of adults at first = 9 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 17; (b) 20; (c) 9; (d) 18