Quantitative Aptitude - Arithmetic Ability Questions

When a number is increased by 20, it becomes 116% of itself. What is the number?

In a trapezium ABCD, AB and DC are parallel sides and ∠ ADC = 90°. If AB = 15 cm, CD = 40 cm and diagonal AC = 41 cm. Then the area of the trapezium ABCD is

ABCD is a quadrilateral inscribed in a circle (radius = ). The bisectors of the angles DAB and BCD intersect the circle at X and Y, respectively. What is the length of the straight line XY?

If A = 1 – 10 + 3 – 12 + 5 – 14 + 7 + ... upto 60 terms, then what is the value of A?

The area of a circle is 616 sq cm, find its circumference?

If the radius of a circle is increased by 31% its area increases by ______.

What is the value of Tan 60 + Cosec 60?

If a2+b2+c2=83and a+b+c=15 then the value of ab+bc+ca is