A and B are friends and their ages differ by 4 years, A being the elder. A’s father D, is twice as old as A, and B is twice as old as his si

Question

A and B are friends and their ages differ by 4 years, A being the elder. A’s father D, is twice as old as A, and B is twice as old as his sister C. The age of D and and C differ by 38 years. Find the ages of A and B.​

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Kim Cúc 4 years 2021-09-02T00:22:06+00:00 1 Answers 16 views 0

Answers ( )

  1. huyenthanh
    0
    2021-09-02T00:23:24+00:00
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    Answer:

    Step-by-step explanation:

    A = B+4

    D = 2A

    B = 2C

    D-C =  38

    2A – B/2 = 38

    2(B+4) – B/2 = 38

    4B+16 – B = 79

    3B = 63

    B = 21

    A = B+4 = 25

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