Three busloads of students drove off on a field trip.Fifty students rode the first bus. The ratio of boys to girls on this bus was 2:3. The ratio of boys on the first bus to boys on the second bus was 5:6, though the ratio of girls to boys on bus 2 was 50:50. The ratio of girls on the third bus to girls on the second bus was 7:8. Boys comprised 40% of the students on the third bus. What is the total number of students aboard the 3 buses?
2006-08-08 17:29:09 · 16 answers · asked by jj 1 in Education & Reference ➔ Trivia
bus 1 boys=20 girls=30
bus 2 boys=24 girls=24
bus3 boys= 14 girls=21
total: boys=58 girls=75
toatl total: 133
2006-08-08 17:36:57 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The ratio of boys and girls riding on the three busses is not significant. You mention that in the first bus there are fifty students so I presume 1 busload can contain only 50 students. Therefore, the three buses has a total number of 150 students . Is my guess right?
2006-08-09 00:41:02 · answer #2 · answered by Jeth L 2 · 0⤊ 0⤋
in 1st bus: 20 boys, 30 girls. Total: 50
in 2nd bus, there are 6 boys for every 5 in the 1st bus. So if there are 20 (5*4) in the 1st bus, there must be 6*4=24 boys in 2nd bus. same # of girls. Total, 48
3rd bus: 7 girls for every 8 in bus 2. 24=8*3. So there must be 7*3=21 girls in 3rd bus. 3 girls for every 2 boys in 3rd bus. so # of boys=2*7=14. Total: 35
Grand total: 50+48+35=133
2006-08-09 14:38:28 · answer #3 · answered by da Benchee 2 · 0⤊ 0⤋
bus #1 boys-50
Girls-20
bus #2 boys-32
girls-32
bus #3 boys-7
gilrs-28
total students-149
2006-08-09 00:55:07 · answer #4 · answered by dratz 2 · 0⤊ 0⤋
133 YAY I DID IT!!! =) bus 1 = 50
bus 2 = 48
bus 3 = 35
i used proportions...
2006-08-09 01:58:19 · answer #5 · answered by Anonymous · 0⤊ 0⤋
150
2006-08-09 00:37:48 · answer #6 · answered by Charles 2 · 0⤊ 0⤋
124
2006-08-09 00:42:05 · answer #7 · answered by Bobbi 2 · 0⤊ 0⤋
160
2006-08-09 05:36:54 · answer #8 · answered by spicy little noja 3 · 0⤊ 0⤋
Another vote for Katherine. My calculations agree with her sub totals and total...133.
A more clever answer could include the drivers and chaperons, but the question doesn't allow for them.
2006-08-09 01:24:16 · answer #9 · answered by tichur 7 · 0⤊ 0⤋
Dude, anyone who would bother to figure out all that **** is ****** up in the head...and I actually tried to figure that out to...
2006-08-09 00:34:58 · answer #10 · answered by Spelunking Spork 4 · 0⤊ 0⤋