During a class conference,
56 of the students were boys and the rest were girls. Halfway, 185 more girls joined in the conference and there were
38 as many boys as girls. Find the number of students at the class conference in the end.
| |
Boys |
Girls |
| Before |
5x3 =
15 u |
1x3 =
3 u |
| |
|
+ 185 |
| After |
3x5 =
15 u |
8x5 =
40 u |
The number of girls remains unchanged.
LCM of 3 and 5 = 15.
Number of more girls who joined in
= 40 u - 3 u
= 37 u
37 u = 185
1 u = 185 ÷ 37 = 5
Number of students in the end
= 15 u + 40 u
= 55 u
= 55 x 5
= 275
Answer(s): 275
