PSLE In a school, 45% of the members in Computer Club and 75% of the members in Art Club are boys. Both clubs have the same number of girls. The Computer Club has 48 less boys than the Art Club. How many members are there in Art Club?
|
Computer Club |
Art Club |
Types |
Boys |
Girls |
Boys |
Girls |
Comparing the boys and the girls in each club |
9x1 |
11x1 |
3x11 |
1x11 |
Comparing the girls in 2 clubs |
|
1 |
|
1 |
|
9 u |
11 u |
33 u |
11 u |
45% =
45100 =
920 Fraction of the members in Computer Club that are girls
= 1 -
920 =
1120 75% =
75100 =
34 Fraction of the members in Art club that are girls
= 1 -
34 =
14 The number of girls in both clubs is the same. Make the numerators the same. LCM of 11 and 1 is 11.
11x120x1 of the members in Computer Club =
1x114x11 of the members in Art Club
1120of the members in Computer Club =
1144 of the members in Art Club
Number of less boys in Computer Club than Art Club
= 33 u - 9 u
= 24 u
24 u = 48
1 u = 48 ÷ 24 = 2
Number of members in Art Club
= 44 u
= 44 x 2
= 88
Answer(s): 88