Question

A survey is carried by the school social club for the student come by car in school .x-9/2 cars carry one student √x Cars carry 2 students. √x/7 cars carry three students and x/7cars carry three students if the total the total number of cas used number of students are 59, find the total no. of cars used by the students

Answer 1

Answer:

35

Step-by-step explanation:

x=49

$\sqrt{x}$=7

therefore total no of cars should be x value substituted in this

.x-9/2 +√x +√x/7 + x/7 = 35

NOTE

X VALUE IS NOT TOTAL NO OF CARS

Answer 2

Answer:

49

Step-by-step explanation:

Cars                                          Student                 Type

                               1                                   A

√x                           2                                  B

                               3                               C  

                                3                              D

Total number of students =59

As we have to use all cars , and the number of cars should be minimum.

Total number of students carried by Cars, A , B, C and D are = 1+2+3+3=9

If we want least number of cars should be used,

Car D or car C should be used 19 times and then car B should be used once.

So, number of cars used= 19+1=20

If all the cars are used , equal number of times

then , p +2 q + 3 r +3 s=59

and, p=q=r=s

x+2 x+3 x+3 x =59

9 x=59

Now, all the cars should be used 6 times, then we should use either of car C,and Car D once and then Car B only one time.

Number of cars used=6+1+1=8 cars