Fill in the blanks.
At a gathering,
37 of the boys and
715 of the girls and
513 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 -
37=
47Fraction of the girls who remained
= 1 -
715 =
815Fraction of the adults who remained
= 1 -
513 =
813The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 4, 8 and 8 = 8
4 x 27 x 2 of the boys =
8 x 115 x 1 of the girls =
8 x 113 x 1 of the adults
814 of the boys =
815 of the girls =
813 of the adults
Boys : Girls : Adults
14 : 15 : 13
(a)
Number of boys at first = 14 u
(b)
Number of girls at first = 15 u
(c)
Number of adults at first = 13 u
(d)
Number of people who remained
= 3 x 8 u
= 24 u
Answer(s): (a) 14; (b) 15; (c) 13; (d) 24