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ICSE-VIII-Mathematics

05: Playing with Number Class 8 Maths

with Solutions -
Qstn# A-6 Prvs-QstnNext-Qstn
  • #6
    If a = 6, show that abc = bac.
    Ans : Given: a = 6
    To show: abc = bac
    Proof:abc = 100a + 106 + c ...(i)
    (By using property 3)
    bac = 1006 + 10a + c ...(ii)
    (By using property 3)
    Since, a = 6
    Substitute the value of a = 6 in equation (i) and (ii), we get
    abc = 1006 + 106 + c ...(iii)
    bac = 1006 + 106 + c ...(iv)
    Subtracting (iv) from (iii) abc - bac = 0
    abc = bac
    Hence, proved.