Quantitative Aptitude - Arithmetic Ability Questions

The sum of three consecutive even numbers is 42. Find the middle number.

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.

What is the value of [(cos 3θ + 2cos 5θ + cos 7θ)÷(cos θ + 2cos 3θ + cos 5θ)] + sin 2θ tan 3θ?

Divide 20 into two parts such that the sum of the square of the parts is 232. What is the value of the two parts?

Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are

In the following question, select the odd letter/letters from the given alternatives.

What is the highest common factor of 360 and 450?