If the product of three consecutive integers is 210, then the sum of integers is .
৪
8
১৬
None of these
If x = a + 1a and y = a –1a then x4 + y4 - 2x²y² = ?
None of the above
3:15
7:15
8:45
9:45
The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is .
BIIT
DIT
BAT