Quantitative Aptitude - Arithmetic Ability Questions

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

A work can be completed by 28 women in 36 days. If 4 women leave after working for 18 days, then how many days will be needed to complete the remaining work?

A group of boys has an average weight of 36 kg. One boy weighing 42 kg leaves the group and another boy weighing 30 kg joins the group. If the average now becomes 35.7 kg, then how many boys are there in the group?

Marked price of an item is Rs 900. On purchase of 2 items discount is 6%, on purchase of 3 items discount is 12%. Rajani buys 5 items, what is the effective discount?

Find the odd word / letter / number from the given alternative

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2)/(3q2 + 4s2 + 5u2)]?

If 170% of a number added to 66, then the result becomes equal to twice of the number. What is the number?

If (x+a) is the H.C.F of 2x2+5x-12 and x2+x-12 then find the value of a.