A question is followed by data in the form of two statements labelled as I and II. You must decide whether the data given in the statements are sufficient to answer the questions.
How many brothers does A have ?
I. A’s father has four children.
II. A is the only daughter of her parents.
Inthe right-angled $$\triangle ABC$$ what is $$\angle A ?$$
I. $$\angle B = 30^\circ$$
II. $$\angle A + \angle C > 90^\circ$$
What is the perimeter of the circular sector ?
I. The angle of the sector is $$\frac{\pi}{3}$$
II. The area of the sector is $$6 \pi$$ square units.
Is the product a.b an irrational number?
I. a is an irrational number.
II. b is an irrational number.
What is the area of $$\triangle ABC ?$$
I. $$\angle ABC = 60^\circ$$
II. $$AB = BC = CA = 4$$
What is the average of a, b, c and d ?
I. a, b, c and d are primes.
II. a, b, c and d lie in {10, 11, 12, ......., 20}
Is $$\triangle ABC$$ right-angled ?
I. A lies on the circle with BC as a diameter.
II. A, B and C lie on a circle.
What is the value of V ?
I. V is the volume of a cylinder
II. The cylinder is of height h units.