Question

find the quantity x,if
(a) 20% of x is 600
(b) 12% of x is 480
(c) 10% of x is 4 liters
(d) 55% of x is 385 minutes​

Answer 1

Solutions

(a) 20% of x of 600

20/100*x = 600

1/5*x = 600

x = 600*5

x = 3000

(b) 12% of x is 480

12/100*x = 480

x = 480*100/12

x = 40*100

x = 4000

(c) 10% of x is 4 liters

10/100*x = 4

1/10*x = 4

x = 4*10

x = 40 liters

(d) 55% of x is 385 minutes

55/100*x = 385

11/20*x = 385

x = 385*20/11

x = 35*20

x = 700

Answer 2

Step-by-step explanation:

20% of x is 600

20/100 * x = 600

20x/100 = 600

x = 600*100/20

x = 3000

(b) 12% of x is 480

12/100 *x = 480

12x/100 = 480

x = 480*100/12

x = 4000

(c) 40 answer

( d) 700answer