MBA Exam

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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MBA Other Question

Consider four digit numbers for which the first two digits are equal and the last two digits are also equal. How many such numbers are perfect squares?

1) 1
2) 2
3) 3
4) 4
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