Quantitative Aptitude - Arithmetic Ability Questions

If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

If  2x+14x = 1, then the value of  x2+164x2is

If 4(2x + 3) > 5 -­ x and 5x - ­3(2x­ - 7) > 3x -­ 1, then x can take which of the following values?

If a + b = 8 and ab =15, then a3 + b3 is

Find the unit digit in the given product (4211)102 x (361)52.

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

In what ratio rice costing Rs 14/kg mixed with another rice costing Rs 11/kg to get the mixture costing Rs 11.6/kg?