RRB Junior Engineer Stage 1 Model Papers 5

Question : 7 of 100

Marks: +1, -0

If the sum of the digits of any integer lying between 100 and 1000 is subtracted from the number, the result always is

Solution:

(100x + 10y + z) – (x + y + z) = 99x + 9y

= 9 (11x + y)

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