Quantitative Aptitude - Arithmetic Ability Questions

Which one among the following does not belong to the group?

If cotA = x, then the value of x is

Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

The largest 5 digit number exactly divisible by 95 is ______.

ΔABC is similar to ΔPQR. Length of AB is 36 cm and length of the corresponding side PQ is 16 cm. If area of ΔABC is 1296 sq cm, what is the area of ΔPQR?

If a + b = 3 and ab = -4, then what is the value of a3 + b3?

If a + a2 + a3 – 1 = 0, then what is the value ofa3 + (1/a)?

A wholesaler sells a watch to a retailer at a gain of 20% and the retailer sells it to a customer at a loss of 10%. If the customer pays Rs 874.8, what had it cost the wholesaler?