In the following questions numbered 1 to 20, 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.
In how many days two persons A and B working together can complete a piece of work?
(I) A alone can complete the job in 10 days.
(II) B alone can complete the job in 12 days
What is the present age of the father?
(I) The sum of the present ages of the father and the son is 40.
(II) Five years ago, the fathers age was 5 times that of his son.
In the rectangle ABCD, which of the triang les AED and AEC has larger area?
(I) DE < EC
(II) AC > AE
What is the lateral surface area of the cone?
(I) Volume of the cone is $$9\pi cm^{3}$$
(II) Semi vertical angle of the cone is $$30^{\circ}$$
What is the rank of the student A in the class?
(I) The class has 25 students
(II) There are 13 students in the class who scored more marks than A.
Among four people P, Q, R and S, who is the tallest?
(I) R is shorter than Q.
(II) Q is taller than P, but shorter than S.
Six persons A, B, C, D, E and F are sitting around a circular table facing the centre. Who is sitting opposite to B?
(I) A and F are immediate left and right to E respectively.
(II) C and B are immediate right and left to D respectively.
Will it be Monday tomorrow?
(I) Sunday is a holiday.
(II) It is not a Friday day before yesterday.
What is the number of white balls in the bag?
(I) There are 14 balls in the bag.
(II) Number of black balls in the bag is 10.