Quantitative Aptitude - Arithmetic Ability Questions

If P : Q : R = 6 : 7 : 8 and R : S = 3 : 5, then what is P : S?

Find the volume (in cm3) of a cube of side 7.5 cm.

Find the missing digit if it has 11 and 13 as factors?

If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is

A right circular cylinder has height as 18 cm and radius as 7 cm. The cylinder is cut in three equal parts (by 2 cuts parallel to base). What is the percentage increase in total surface area?

A shopkeeper marks up his wares by 60% and offers 10% discount. What will be the selling price (in Rs) if the cost price is Rs 7500?

A tower is 50 meters high.Its shadow is x metres shorter when the sun's altitude is 45° than when it is 30° . The value of x in metres is

Find the odd word/letters/number from the given alternatives.