MBA Exam

What is the sum of
all the co-primes of 210 which are less than 210?1. 2102. 5763. 50404. 54355. 7000[imp formula based]

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

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MBA Other Question

Find the sum of the series:7/2 + 19/6 + 37/12 + ..... + 14491/4830.

1) 14559/70
2) 15449/69
3) 214
4) 212
If [log10 1] + [log10 2] + ……. [log10 n] = n, where [x] denotes the greater integer less than or equal to x, then

1) 1
2) 2
3) 3
4) 4
5) 5