self Maths Puzzle Numerical Ability Permutation and Combination

A number when divided by 8,7,6,5 leaves a remainder 1,2,3,4. find the number ?
a)3208 b)3209 c)3334 d)3210

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self Other Question

2 persons shyam and murali starts walking from the same point.shyam goes 4m towards east and turns left and walks 4m.murali walks towards 3m west and walks 4m right.what is the distance between them at this point ? (a+b)^3-(a-b)^3 =