In a group of people travelling in a bus, persons can speak Tamil, can speak Hindi and can speak Gujarati. No one can speak any other language. If people in the group can speak two languages and one person can speak all the three languages, then how many people are there in the group?
Important Questions on Practice Test Paper
I. All balls are black.
II. All balls are white.
III. Only some balls are black.
IV. No balls are black.
Assuming that the balls can only be black or white, which two statements given above can both be true, but cannot both be false? Choose the correct answer from the codes given below:
A boat, which has a speed of in still water, crosses a river of width along the shortest possible path in minutes. What is the velocity of the river water in ?
If pumps (having equal capacity) can fill a tank in , then how many extra pumps will be required to fill the tank in ?
Out of the three annual examinations, each with a total of marks, a student secured average marks of and in the first and second annual examinations. To have an overall average of , how many marks does the student need to secure in the third annual examination?
One local train and another express train were proceeding in the same direction on parallel tracks at and respectively. The driver of the former noticed that it took exactly seconds for the faster train to pass by him. What is the length of the faster train?
A, B, C, D, E, and F are sitting on six regularly placed chairs around a round table but not necessarily in that order. It is observed that A is between D and F. C is opposite to D. D and E are not on neighbouring chairs. B is an immediate right of D. Which one of the following pairs must be sitting on neighbouring chairs?
