Question

at a car park 50% of the Vikas Park work hours 30 person for motorcycles and the rest of the 40 vehicles were van (1) calculate the number of motorcycle parked there(2) if 40 cars left the car park what percentage of the vehicles parked their were cars​

Answer 1

Answer:

Step-by-step explanation:

let x be the total no. of vehicles parked

no. of cars = 50% of x

= 50x/100

= 5x/10

no. of motorcycles = 30% of x

= 30x/100

= 3x/10

and no. of vans = 40

but,

no. of vans + no. of motorcycles + no. of cars

= x

=> 40 + 5x/10 + 3x/10 = x

=> 40 + (5x + 3x)/10 = x

=> 40 + 8x/10 = x

=> (400 + 8x)/10 = x

=> 400 + 8x = 10x

=> 400 = 10x - 8x

=> 400 = 2x

=> 400/2 = x

=> x = 200

therefore no. of motorcycles = 3x/10

= (3 × 200)/10

= 600/10

= 60

cars remaining if 40 cars left = 5x/10 - 40

= (5×200)/10 - 40

= 1000/10 - 40

= 100 - 40

= 60

percentage of cars remaining = (60/200) × 100

= (3/10) × 100

= 300/10

= 30%

Answer 2

$<marquee behavior=slide bgcolor=aqua> </h1>Answer => </h1></marquee>$

50%=cars

30%=motorcycles

50%+30%=80% 100% -80%=20%

remaining vehicles ,i.e.,vans =40

remaining percent=20%

so,40 vehicles =20%

number of motorcycles=by applying unitary method

40\20%

x =30%

40 x 30% =20x

1200 =20x

x =1200/20

$<marquee behavior=slide bgcolor=aqua> </h1>x=60 </h1></marquee>$

=Number of motorcycles are 60.
new percent of cars=50% - 20% (Because 40 vehicles =20%)

$<marquee behavior=slide bgcolor=aqua> </h1>=30℅ </h1></marquee>$