MBA
Exam
A triangular number is defined as a number which has the property of being expressed as a sum of consecutive natural numbers starting with 1. How many triangular numbers less than 1000, have the property that they are the difference of squares of two consecutive natural numbers? 1) 20 2) 21 3) 22 4) 23
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MBA Other Question
In a building there are 12 floors plus the ground floor. 9 people get into the lift of the building on the ground floor. The lift does not stop on the first floor. If 2,3 4 people get out of the lift on its upward journey,in how many ways can they do so? (Assume the passengers get out on different floors). 1) 11C3 * 3P3 2) 11P3 * 9C4 * 5C3 3) 10P3 * 9C4 * 5C3 4) 12C3
The average weight of a class of 100 students in 45 kg. The class consists of two sections, A and B, each with 50 students. The average weight A1, of section A is less than the average weight A2, of section B. If the heaviest student, Shantanu, of Section B is moved to section A and the lightest student Sunder of section A is moved to section B, then the average weights of the two sections are interchanged. What is weight of Sunder? I. A2 – A1 = 1.II. If Shantanu is moved from section B to section A and Sunder is not moved, then the average weights of the two sections will be equal. 1) if the question can be answered by using statement I alone but not by using statement II alone 2) f the question can be answered by using statement II alone but not by using statement I alone 3) if the question can be answered by using either statement I alone or statement II alone, and 4) if the question can be answered by using both statements I and II together