Question
Statements: Only a few Rays are Radiation.
Some Radiations are laser. Only Lasers are Derma. Conclusion I) Some Lasers are Radiation. II) Some Dermas are Ray. Read both the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Give Answer:Solution
Some Radiations are laser (I) → Some Lasers are Radiation (I). Hence conclusion I follows. Only Lasers are Derma → All Derma are Lasers and Derma cannot have any positive relation with anyone. Hence conclusion II does not follow.
In a circle, two tangents PA and PB are drawn from an external point P such that the angle ∠APB = 60°. If the radius of the circle is 10 cm, find th...
Two pipes, A and B, can independently fill the tank in 12 minutes and 15 minutes respectively, while pipe C can empty 10 gallons from the tank in 2 minu...
How many Kg of rice costing rupees 19 per kg must be mixed with 26 Kg of rice costing Rs.25 per Kg, so that there may be a gain of 17.5% by selling the ...
A bag contains 5 red and 3 black balls. One is drawn at random. It is red. Then without replacement, another is drawn. What is the probability that it i...
P earns Rs. 12,000 per month. He spends 40% of his income on rent, 25% of the remaining amount on food, and saves the rest. Q sav...
In a cyclic quadrilateral ABCD, the diagonals AC and BD intersect at E. If ∠AEC = 120° and ∠BED = 30°, what is the measure of ∠ADB?Â
...What will come in place of ?
4, 5, 13, 40, 104, ?.
A and B initiated a business by investing Rs. 6,000 and Rs. 3,000, respectively. Their investments were made for 8 months and 'm'...
The school has two types of classes: Math and Science. The average number of students per Math class is x, and the average number of students per Scienc...
A man can row a boat in still water at a speed of 8 km/h. He rows downstream for 1 hour and then returns upstream. If the total time taken for the entir...