A student divided a number by 2/3 when he required to multiply by 3/2. What is the percentage of error in his result.

If a**b**c**d** = ad - bc then 3**4**5**6** =

solve xy(3 + 4) = z + 10 for z

If g(x) = 2x + 2, then g(x - 6) =

If B(a) = a + d, then B(d) =

solve for z: x * z * y + 200 = z + 10

Complete the series: a, ab, abc,...

What number comes next in the following sequence? 128, 256, 512, 1024 ...

Which of the following doesn’t belong: red, yellow, banana, blue, black

Solve for y when x = 4: y = 5x

What number comes next? 2, 1, (1/2), (1/4), ...