Agirl is twice as old as her brother and half as old as her dad. in 22 years, her brother will be half as old as his father. how old is the daughter now?

Let x be the age of the brother, then:

Now:
x = brother
2x = sister
4x = father

In 22 years:
(x+22) = brother
(4x+22) = father

4x+22 = 2(x+22)
4x+22 = 2x + 44
4x-2x = 44 - 22
2x = 22
x = 11 years old (brother now)

11*2=22 years old (sister now).

20%

Step-by-step explanation:

Two bags contain marbles, while Bag A contains 112 marbles, bag B contains 140 marbles.

Number of marbles in bag A = 112

Number of marbles in bag B = 140

Differences in the marbles

= 140-112= 28

Percent fewer marbles in Bag A than Bag B will be:

Difference in marbles in the bags divided by the marbles in bag B multiplied by 100.

= 28/140 × 100

= 1/5 × 100

= 20%