Saved Bookmarks
| 1. |
(11) 540 is distributed equally among some students. If there would have been 30students more each would have received 3 less. Find the number of students. |
|
Answer» Answer: Total ORANGES=540 Let the total number of STUDENTS be xOrange each studnt GETS= x 540
If 30 more students are there so, the total number of students will be x+30 Number of oranges per person will be x+30 540
if 30 students were more each would GET 3 oranges less= x 540
−3 ⇒ x+30 540
= x 540
−3 ⇒540x=(540−3x)(x+30) ⇒3x 2 +90x−16200=0 ⇒x 2 +30x−5400=0 ⇒x 2 +90x−60−5400=0 ⇒(x+90)(x−60)=0 ∴x=−90,60 But number of students cannot be negative,so the number of students is 60 |
|