International Business Machines (IBM) Question:

If cost of four dozen proof machine ribbons and five dozen accounting machine ribbons was Rs.160/-. If one dozen accounting machine ribbons cost Rs.20/-, what is cost of a dozen proof machine ribbons?

IBM Interview Question
IBM Interview Question

Answer:

Rs.15


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If in Monday banker processed batch of cheques, on Tuesday she processed three times as many, and on Wednesday she processed 4000 cheques. In the three days, she processed 16000 cheques. How many did she process on Tuesday?Suppose if clerk can process 80 cheques in half an hour, how many cheques can she process in a seven and one half hour day?