Quantitative Aptitude - Arithmetic Ability Questions

If (4x -­ 5) = (3x ­- 1), then the numerical value of (x + 4)2

From the top of a 20 m high building, the angle of elevation of the top of a tower is 60° and the angle of depression of it's foot is at 45°, then the height of the tower is (√3=1.732)

ΔDEF is similar to ΔGHI. Length of DE is 9 cm and length of the corresponding side GH is 16 cm. What is the ratio of areas of Δ DEF : Δ GHI?

The mode of the data 12, 1, 10, 1, 9, 3, 4, 9, 7, 9 is

The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.

A shopkeeper by selling 8 iphones, earns a profit equal to the selling price of 3 iphones. His profit percentage is

A can do a work in 16 days and B in 20 days. If they work on it together for 8 days, then what fraction of work is left?

A tank can be filled in 30 minutes. There is a leakage which can empty the tank in 90 minutes. Therefore, the tank will be filled in