Quantitative Aptitude - Arithmetic Ability Questions

The simple interest on a certain sum of money at the rate of 5% per annum for 8 years is Rs. 840 . Rate of interest for which the same amount of interest can be received on the same sum after 5 years is

Which of the following condition is sufficient to state that triangle ABC and DEF are similar?

What is the measure of an interior angle of a regular dodecagon?

Average age of 5 students of a school is 14 years. The average age of students and their Mathematics and science teachers is 30 years. If the age of science teacher is 6 years more than the age of Mathematics teacher, then what is the age (in years) of Mathematics teacher?

The surface area (in sq.cm.) of a sphere with radius 1 cm is :(pi = 22/7)

Three sides of a triangle are 5 cm, 9 cm and x cm. The minimum integral value of x is

If an interior of a regular polygon is 170o, then the number of sides of the polygon is

An arc of 30° in one circle is double an arc in a second circle, the radius of which is three times the radius of the first. Then the angles subtended by the arc of the second circle at its centre is