Quantitative Aptitude - Arithmetic Ability Questions

The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?

For x > 0, what is the minimum value of  x + x+22x?

If 15% of x is three times of 10% of y, then x:y = 

According to the will the wealth of Rs 21,25,000 was to be divided between the son and the daughter in the ratio 7/6 : 5/3. How much did the son get (in Rs)?

To cover a distance of 225 km in 2.5 hours what should be the average speed of the car in meters/second?

Pradeep has done 1/4th of a job in 14 days, Saquib completes the rest of the job in 56 days. In how many days can they together complete the job?

The average temperature of Monday ,Tuesday , Wednesday and Thursday is 60°, The average for Tuesday, Wednesday, Thursday and Friday is 63°; If the ratio of temperature for Monday and Friday is 21 : 25, then what is the temperature of Friday ?

If 1/(tanA + cotA) = x, then value of x is