One thought on “The sum of the ages of Sadia and her mother is 63 years. Four years earlier her age was 1/4 of her mother’s age. What is the present age of her mother?

  1. Explanation:

    THE SUM OF THE AGES OF SADIA AND MOTHER IS 63 Y
    sadia = s
    mother = m
    s + m = 63 ………… eq 1

    4 Years EARLIER, HER AGE WAS 1/4 OF HER MOTHER’S AGE
    s – 4 = 1/4 ( m – 4 ) …… eq 2
    eq 2 multiply by 4 both sides
    we get
    4s – 16 = m – 4 ……eq 3

    from eq 1

    s = 63 – m ………..eq 4
    put the value of s in eq 3 we get
    4 ( 63 – m ) – 16 = m – 4
    252 – 4m – 16 = m – 4
    252 – 12 = 5m
    240 = 5m
    m = 48

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