All 20 students of a class are sitting in a straight row facing east. Ram is 8th from the right end and Sita is 10th from the left end. How many students are sitting between Ram and Sita?
If the ratio of two exterior angles on the same side of a transversal line intersecting the two parallel lines is 7 : 5, then how much more is the larger of these two exterior angles than the smaller one?
Rahman goes 20 km towards north from a fixed point F, then after turning to his right and he goes 15 km.
After this he goes 20 km after turning to his right.
How far and in what direction is he now with respect to the starting point F?
(All turns are 90° turns only)
A. a large amount of energy is required to break the strong inter-ionic attraction
17.
An electric circuit consumes energy at a rate of 540 W per minute when heated.
If the voltage across the circuit is 270 V, what is the resistance of the circuit?
A and B invest in a business in the ratio of 7 : 8 for same time. If 7% of the total profit goes to charity and A’s share in profit is Rs 12,600, then what is the total amount of profit earned? [Give your answer correct to 2 decimal places.]
A class consisting of 30 students took a competitive exam. 18 of these students got an average of 90 marks and the remaining students of this class got an average of 80 marks. What is the average score of the class as a whole?
