Quantitative Aptitude - Arithmetic Ability Questions

If the radius (r) of a circle is increased by 'x' units, what is the number of units by which the circumstance of the circle is increased?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?

In a number system, on dividing 11509 by a certain number, Mukesh gets 71 as quotient and 7 as remainder. What is the divisor?

In an isosceles triangle ABC, AB = AC and ∠A = 80°. The bisector of ∠B and ∠C meet at D. The ∠BDC is equal to

 In ΔDEF measure of angle E is 90 deg. If tanD = 4/3, and DE = 6cm, then what is the length (in cm) of side EF?

The area and the length of one of the diagonals of a rhombus is 60 cm2 and 8 cm respectively. Find the length of its other diagonal (in cm).

Find the total surface area (in cm²) of a right circular cone of diameter 14 cm and slant height 10 cm.