Fill in the blanks.
At a gathering,
35 of the boys and
710 of the girls and
47 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 -
35=
25Fraction of the girls who remained
= 1 -
710 =
310Fraction of the adults who remained
= 1 -
47 =
37The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 2, 3 and 3 = 6
2 x 35 x 3 of the boys =
3 x 210 x 2 of the girls =
3 x 27 x 2 of the adults
615 of the boys =
620 of the girls =
614 of the adults
Boys : Girls : Adults
15 : 20 : 14
(a)
Number of boys at first = 15 u
(b)
Number of girls at first = 20 u
(c)
Number of adults at first = 14 u
(d)
Number of people who remained
= 3 x 6 u
= 18 u
Answer(s): (a) 15; (b) 20; (c) 14; (d) 18