Question

a schoolyard contains only bicycles and 4 wheeled wagons. on tuesday, the total number of wheels in the schoolyard was 90. what could be possible number of bicycles?

Answer 1

12 wagons 1 bicycle it is right

Answer 2

Answer:

Possible bicycles are 1 to 45.

Step-by-step explanation:

Given Data:

Let the number of bicycles = x  

Number of wagons = y

Step 1:

According to the problem given,

2x + 4y = 90

Step 2:

Divide each term with 2, we get

x + 2y = 45  

x = - 2y + 45 --- (1)

Step 3:

It is a linear equation in two variables.

i) If y = 0,

x = 45

ii) If y = 1,

x = 43,

iii) If y = 2,

x = 39

iv) If y = 22,

x = 1

Step 4:

Therefore,

Possible bicycles are 1 to 45.

Possible wagons are 0 to 22.