Fill in the blanks.
At a gathering,
12 of the boys and
1316 of the girls and
56 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 -
12=
12Fraction of the girls who remained
= 1 -
1316 =
316Fraction of the adults who remained
= 1 -
56 =
16The number of boys, girls and adults who remained is the same.
Make the numerators the same.
LCM of 1, 3 and 1 = 3
1 x 32 x 3 of the boys =
3 x 116 x 1 of the girls =
1 x 36 x 3 of the adults
36 of the boys =
316 of the girls =
318 of the adults
Boys : Girls : Adults
6 : 16 : 18
(a)
Number of boys at first = 6 u
(b)
Number of girls at first = 16 u
(c)
Number of adults at first = 18 u
(d)
Number of people who remained
= 3 x 3 u
= 9 u
Answer(s): (a) 6; (b) 16; (c) 18; (d) 9