Quantitative Aptitude - Arithmetic Ability Questions

If Tan θ = 9/40, then Sec θ = ?

Find the LCM of 34, 51 and 68.

Rohan and Mohit together can build a wall in 8 days. Mohit and Vikas build the same wall in 10 days and Vikas and Rohan can build the same wall in 12days. In how many days can all the three complete the same wall while working together?

A can do 75% of a job in 18 days and B can do 25% of the job in 12 days. If they work on it together, in how many days can they do 75% of the job?

In a class of 50 students there are 22 girls who scored an average of 35 marks in the test. What is the average marks of the boys if the class average is 42 marks?

If a vendor sells a coconut at Rs 24 he makes 20% loss. If he sells at Rs 36 then what is his profit percentage?

∆PQR is right angled at Q. If sinP = 12/13, then what is the value of tanR?

What is the value of sin225°+ sin265°?