Quantitative Aptitude - Arithmetic Ability Questions

To cover a distance of 333 km in 2 hours by a car, what should be the average speed of the car (in meter/second)?

Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?

The average age of 19 boys in a class is 21 years. If the teacher's age is included, the average increases to 22 years. What is the teacher's age?

Six year ago Parvez’s age was same as the present age of Manish. If the present age of Parvez is one-fourth more than that of Manish's present age, then in how many years will Parvez’s age become double of Manish’s present age?

In a class of 56 students there are 28 girls. The average weight of these girls is 46 kg and average weight of the full class is 51 kgs. What is the average weight of the boys of the class?

What is the value of [(sin 7x – sin 5x)÷(cos 7x + cos 5x)] – [(cos 6x – cos 4x)÷(sin 6x + sin 4x)]?

If a - b = 1 and ab = 6, then what is the value of a3- b3?

The perimeter and the breadth of a rectangle are 60 cm and 14 cm respectively. Find its area (in cm²)