RRB JE 24th May 2019 Shift-3

Question 45

If 1/7 of a number is subtracted from the number, the result is 30 less than the number. Find the number.

Solution

let the no be N

ATQ 

$$N - \frac{1N}{7}= N -30$$

 $$\frac{6N}{7} = n -30$$

N = 210


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