Quantitative Aptitude - Arithmetic Ability Questions

If the loss of percent on article is 15%. Then the ratio of the cost price and sell price will be

Wheat costing Rs 30/kg, Rs 35/kg and a third variety of wheat are mixed in the ratio of 3 : 4 : 2. If the mixture is costs Rs 34/kg, then what will be the cost (in Rs/kg) of the third variety of wheat?

If a is positive and a2+1a2 = 7, then a3 + 1a3 = ?

A car covers the first 30 km at a speed of 60 kmph and the next 20 km at 80 kmph. Find the average speed.

The ratio of present ages of Ramita and Satyajit is 9:7. After 9 years the ratio of their ages will be 5:4. What is Ramita's present age?

In triangle PQR, A is the point of intersection of all the altitudes and B is the point of intersection of all the angle bisectors of the triangle. If ∠PBR =105°, then what is the value of ∠PAR (in degrees)?

In ∆ ABC, the height CD intersects AB at D. The midpoints of AB and BC are P and Q respectively. If AD = 8 cm and CD = 6 cm, then the length of PQ is?

If a+1a=2 then the vealue of a5+1a5 will be