Ama's age is two thirds that of her elder sister. four years ago ama's age was half the sister's. how old is the sister?

Ama is 8 and her sister is 12.

Step-by-step explanation:

Call Ama's age NOW, a. Her sister's age NOW will be s. Then we have

a = (2/3)s

a - 4 = (1/2)(s - 4)

Substitute the first into the second equation and get

(2/3)s - 4 = (1/2)(s - 4) Multiply by 6 to clear fractions and get

4s - 24 = 3(s - 4)

4s - 24 = 3s - 12

Subtract 3s and add 24 and get

s = 12

a = (2/3)(12) = 8

i am sure it will be 90 degrees.

step-by-step explanation:

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step-by-step explanation:

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have a nice day