Quantitative Aptitude - Arithmetic Ability Questions

If a - b = -6 and a2 + b2 = 44, then ab is

∆DEF is right angled at E. If cosD = 5/13, then what is the value of tanF?

The ratio 1 : 5 can be expressed in decimal as

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

In the given figure, PQ = 30, RS = 24 and OM = 12, then what is the value of ON?

The perimeter and the length of one of the diagonals of a rhombus is 34 cm and 8 cm respectively. Find the length of its other diagonal (in cm).

A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?

A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money ?