Question

some cars and bicycle move in the road their total is 50,if the sum of wheels ol' car and bicycle is 169.how many bicycle are there?​

Answer 1

Answer:

6cycle, 9cars,let the cycle be x and car be y

Step-by-step explanation:

1) x+y=15

2x+2y=30

2)2x+4y=48

subtract the two equations

we get y=9,x=6

Answer 2

Answer:

Let cars have 4 and bikes have 2 wheels each.

4c + 2b = 200 (wheels).

c + b = 70 (total number of vehicles).

c = 70 - b.

4(70 - b) + 2b = 200.

280 - 4b + 2b = 200.

-2b = -80.

b = 40, c = 30.

Check: [ 40 + 30 = 70 ] [ 40 * 2 + 30 * 4 = 200 ].

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