Quantitative Aptitude - Arithmetic Ability Questions

If cotA + cotB = x, then value of x is

In the given figure, PQRS is a rectangle and a semicircle with SR as diameter is drawn. A circle is drawn as shown in the figure. If QR = 7 cm, then what is the radius (in cm) of the small circle ?

Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is

If the sum of digits is 9 and the difference between the digit in the ten's place and unit's place is 1, then the two-digit number is?

A trader allowed a discount of 15% on a trolley bag having list price of Rs 1360 and earns a profit of 15.6%. What is the cost price (in Rs) of the trolley bag?

A cube is placed inside a cone of radius 20 cm and height 10 cm, one of its face being on the base of the cone and vertices of opposite face touching the cone. What is the length (in cm) of side of the cube?

When a discount of 20% is given on an African safari ticket, the profit is 43%. If the discount is 28%, then the profit is

What Principal will yield Rs. 120 as Simple Interest at 6% p.a. in 10 years?