Megan is twice as old as anne. six years ago, megan was 4 times as old as anne. how old are they now?

Megan and Anne are 18 years and 9 years old respectively

Step-by-step explanation:

Let Megan's age be M and Anne's A

M = 2A

six years ago

Megan's age then was M - 6

Anne's age then was A - 6

Since megan was 4 times as old as anne

M - 6 = 4(A - 6)

M - 6 = 4A -24

M = 4A - 18

since M = 2A

2A = 4A - 18

4A - 2A = 18

2A = 18

A = 9

M = 2A

M = 18

Megan and Anne are 18 years and 9 years old respectively.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

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