Capgemini Company Verbal Ability Spotting Errors

Is n odd ? Starement I: an -bn is divisible by a - b. Statement II: an + bn is not divisible by a + b.
Using 1st Statement only.
Using 2nd statement only.

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Capgemini Other Question

15 51 216 1100 ? 46452
a.6630,b.6650,c.6560,d.6530,e.none of these
A factory worker placed 3 cubical bales on the floor.then he divided the 1st one into 64 small cubes,2nd one into 27 small cubes and 3rd one into 8 small cubes.Now he covered the exposed the faces with company logo.so..

1 . How many cubes have logo on three faces?
a. 0 b. 4 c. 8 d. 16

2. What is difference between number of cubes having logo on 2 exposed faces and 3 exposed faces?
a. 16 b. 20 c. 25 d. 32
3. What is difference between number of cubes having logo on 1 exposed faces and 3 exposed faces?
a. 16 b. 32 c. 43 d. 50
4 . How many cubes dont have logo on any sides?
a. 10 b. 24 c. 35 d. 55
5 . How many cubes have logo on at least 2 side?
a. 20 b. 45 c. 28 d. 99