MBA Exam

A six-digit natural number abcdef becomes defabc upon being multiplied by a natural number. Find the sum of its digits if they are distinct.

please give the approach.

1) 20
2) 24
3) 27
4) 36

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MBA Other Question

If a trader increased the discount offered on an article by 15 percentage points, the profit he makes on it would decrease by 37.5 percentage points. What is the ratio of his cost price to that of the marked price?

1) 2:3
2) 2:5
3) 3:5
4) 3:2
From 4 gentleman and 4 ladies a committee of 5 is to be formed which consist of a president,vice-president and three secretaries.What will be the number of ways of selecting the commitee with atleast 3 women such that atleast one woman hols the post of president or vice-president?

1) 420
2) 610
3) 256
4) 512