Quantitative Aptitude - Arithmetic Ability Questions

S does half as much work as T in 1/7 of the time taken by T. If together they take 21 days to complete a work, then how may days shall S take to complete that work alone?

The average weight of 35 apples is 50 grams. If some apples of weight 40 grams each were removed, then average weight becomes 57.5 grams. How many apples of weight 40 grams were removed?

One of the internal angle of a rhombus is 60° and length of its shorter diagonal is 8 cm. What is the area of the rhombus?

If the cost price of 25 pens is equal to the selling price of 20 pens, then the profit percent is

A hemisphere is kept on top of a cube. Its front view is shown in the given figure. The total weight of the figure is 21 cm. The ratio of curved surface area of hemisphere and total surface area of cube is 11 : 42. What is the total volume (in cub.cm) of figure?

∆ABC is right angled at B. If m∠A = 30°., then Sec C =?

If 2/3(6x/5 - 1/4) + 1/3 = 9x/5, then what is the value of x?

There are saplings of 361 mangoes tree and neem tree in a garden. The ratio of the number of mango tree to that of neem tree saplings are in the garden?