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(#M40015624) MBA QUESTION number systems, progressions Keep an EYE

All possible seven-digit numbers in base 2 ( binary ) having four 1s and three 0s. What is the sum of all such numbers?

1) 1470
2) 1615
3) 1740
4) 1910

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(#M40015625) MBA QUESTION number systems, progressions Keep an EYE

LCM of 12^24,16^18, N is 24^24 .Number of all possible values of N=S .What is the value of is S?

1) 25
2) 1800
3) 1825
4) NONE OF THESE

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(#M40015630) MBA QUESTION number systems, progressions Keep an EYE

There are r rockets placed at the starting point of a track. The speed of each rocket is equal to twice the sum of the speeds of all the preceding rockets. If the 8th rocket covers the track in 3 minutes, then the time which the 6th rocket takes to cover the track is27 minutes. 9 minutes. 3 minutes. 81 minutes

1) a
2) b
3) c
4) d

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(#M40015632) MBA QUESTION number systems, progressions Keep an EYE

The no. of positive integers n in the range 12<= n <= 40, for which (n-1)(n-2)(n-3).....3.2.1 is not divisible by n?

1) 28
2) 30
3) 29
4) 7

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(#M40015631) MBA QUESTION number systems, progressions Keep an EYE

If x^2 < 625 & |x + 8| < 31, how many values of x are perfect cubes of odd natural numbers?

1) 4
2) 1
3) 2
4) More than 4

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(#M40015633) MBA QUESTION averages, percentages, profit loss and interest Keep an EYE

A vessel of 70 liters is filled with milk and water. 75 % of milk and 25% of water is taken out of the vessel. It is found that the vessel is vacated by 60 %. Find the initial quantity of Water.

1) 21
2) 25
3) 27
4) none

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(#M40015636) MBA QUESTION mensuration, geometry & co-ordinate geometry Keep an EYE

P is the point inside the triangle XYZ. Lines are drawn through P parallel to the sides of the triangle. The areas of the three resulting triangles with a vertex at P are 4, 9 and 49. What is the area of triangle XYZ?

1) 64
2) 100
3) 144
4) 196

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(#M40015637) MBA QUESTION number systems, progressions Keep an EYE

Rem[(7^15)/15] ?Post the approach too

1) 13
2) -17
3) 14
4) 15

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(#M40015640) MBA QUESTION number systems, progressions Keep an EYE

The sum of n terms of an arithmetic progression, starting with 11th term is directly proportional to n^2. The sum of two terms of the arithmetic progression is 0. Which of the following cant be either of these two terms?

1) 5th
2) 11th
3) 21th
4) 16th

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(#M40015639) MBA QUESTION permutations and combinations, probability Keep an EYE

Help me solve this:
If an unbiased coin is tossed four times, then the probability that the same face doesnot show up in any two consecutive trails is :

1) 1/16
2) 1/8
3) 3/8
4) 0
5) 7/8

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