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Question : Directions: Priya points towards a man and says that he is her brother's paternal grandmother's only child. How is the man related to Priya?
Option 1: Brother
Option 2: Paternal grandfather
Option 3: Father
Option 4: Son
Correct Answer: Father
Solution : According to the above information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
So, the man is Priya's father. Hence, the third option is correct.
Question : Given $\small 2^{2}+4^{2}+6^{2}+......+40^{2}=11480$, then the value of $\small 1^{2}+2^{2}+3^{2}+......+20^{2}$ is:
Option 1: 2870
Option 2: 2868
Option 3: 2867
Option 4: 2869
Correct Answer: 2870
Solution : Given: $2^{2}+4^{2}+6^{2}+......+40^{2}=11480$ $⇒2^{2}(1^{2}+2^{2}+3^{2}+......+20^{2})=11480$ $⇒1^{2}+2^{2}+3^{2}+......+20^{2}=\frac{11480}{4}$ $\therefore1^{2}+2^{2}+3^{2}+......+20^{2}=2870$ Hence, the correct answer is 2870.
Question : Directions: Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All toys are Legos. No block is Lego. Some puzzles are blocks. Conclusions: I. Some Legos are puzzles. II. No Lego is a block. III. Some toys are blocks.
Option 1: Only conclusion II follows
Option 2: Only conclusion I follows
Option 3: Only conclusion I and II follow
Option 4: Only conclusion I and III follow
Correct Answer: Only conclusion II follows
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some Legos are puzzles – From the Venn diagram, it is evident that there is no direct relation between Legos and puzzles.
Question : During a school excursion, each student of the junior school was charged Rs. 325 and each student of the senior school was charged Rs. 400. If there were 80 students from junior school and the combined average amount charged per student was Rs. 352, how many students from senior school went for the excursion?
Option 1: 55
Option 2: 45
Option 3: 50
Option 4: 40
Correct Answer: 45
Solution : Let the number of seniors be $x$. The total amount of money charged from the juniors $=325 \times 80= 26000$ Total amount of money charged from all students $= 352 \times (80 + x)$ The total amount charged from the seniors $ =400 \times x$
Question : Directions: Kirti, Suman, Shubh, Kanak, Pari, Charu, Shlok, and Shivi are sitting around a square table facing the centre of the table. Some of them are sitting at the corners, while some are sitting at the exact centre of the sides. Kirti sits third to the left of Shubh. Kirti sits at one of the corners. Kanak sits second to the right of Pari. Pari does not sit at any of the corners. Pari is not an immediate neighbour of Kirti. Suman is an immediate neighbour of Charu. Suman does not sit in any of the middle of the sides. Only three people sit between Suman and Shlok. Who sits to the immediate left of Kanak?
Option 1: Kirti
Option 2: Shlok
Option 3: Shubh
Option 4: Charu
Correct Answer: Shlok
Solution : Given:
(I) Kirti sits third to the left of Shubh. Kirti sits at one of the corners. Kanak sits second to the right of Pari. Pari does not sit at any of the corners. Pari is not an immediate neighbour of Kirti.
(II) Suman is
Question : Comprehension:
Read the given passage carefully and answer the questions that follow. Mountains occupy about a quarter of the Earth’s land, harbour most of its biodiversity hotspots, and supply fresh water to an estimated half of humanity. Present on every continent, mountains include a multitude of ecosystems holding many unique species, such as snow leopards and mountain gorillas. They are also home to great cultural diversity among people who have adapted to the challenges of mountain life. Their special traditions and breath-taking scenery attract ever-growing numbers of tourists. Mountain regions are particularly sensitive to degradation from both human pressures and climate change. Steep slopes mean the clearing of forest for farming, settlements, or infrastructure, which can cause serious soil erosion as well as the loss of habitat. Erosion and pollution harm the quality of the water flowing downstream. Climate change threatens the quantity and timing of water supplies to farms, cities, industry and power stations. Fast-rising temperatures are forcing mountain species, ecosystems and the people that depend on them to adapt or migrate.
Question:
Which of the following most accurately states the central idea of the passage?
Option 1: Pollution
Option 2: Mountain ecosystem
Option 3: Biodegradation
Option 4: Climate change
Correct Answer: Mountain ecosystem
Solution : The second option is the correct answer.
The central idea of the passage is focused on the importance of mountain ecosystems, emphasising their role in providing biodiversity, supplying fresh water, and supporting cultural diversity. The passage discusses the sensitivity of mountain regions to degradation
Read the following passage and answer the questions.
For birds to survive, they must learn to live with and off humans, and those birds, like crows, sparrows, and mynahs, who do this to perfection, continue to thrive as our cities grow, whereas the purely wild birds, who depend on forests for life, are rapidly disappearing because forests are disappearing. If you have just a bit of garden and perhaps a guava tree, you will be visited by innumerable bulbuls, mynahs, tailor birds, parrots, etc. Or, if you own an old house, you will have to share it with pigeons and sparrows. And, if you have neither a garden nor a rooftop, you will still be visited by the crows.
Where man goes, the crow follows. He has learned to perfect the art of living off of humans. He will, I am sure, be the first bird on the moon, scavenging among the paper bags and cartons left behind by untidy astronauts. Crows favour the densest areas of the human population, and there must be one for every human. Many crows seem to have been humans in their previous lives; they possess all the cunning and sense of self preservation of man. At the same time, there are many humans who have obviously been crows, we haven't lost their thieving instincts.
Watch a crow sidling along the garden wall with an eye at the kitchen door and any attendant humans. He waits in the background till his chance comes, and then he pounces! I have even known a crow to make off with an egg from the breakfast table. The mynah, however, is more of a gentleman. He prefers fruit on the tree to scraps from the kitchen and visits the garden in expectation of handouts. He is quite handsome, too, with his bright orange bill. Although the blue jay is quite capable of making his living in the forest, he seems to show a preference for human haunts. He would rather perch on a telegraph wire because he finds it a better launching pad for his sudden rocket flights and aerial acrobatics!
The narrator thinks that some crows must have been humans in previous births because of their:
Option 1: city dwelling
Option 2: selfish ways
Option 3: large numbers
Option 4: untidy habits
Correct Answer: selfish ways
Solution : The correct choice is the second option.
Explanation: The narrator suggests that crows exhibit cunning and a sense of self-preservation similar to humans. The statement, "many crows seem to have been humans in their previous lives; they possess all the cunning and
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Option 1: 369
Option 2: 504
Option 3: 444
Option 4: 568
Correct Answer: 504
Solution : Add one to the first and second numbers and then multiply the resultants to get the third number – Row I: (11 + 1) × (14 + 1) = 12 × 15 = 180 Row II: (17 + 1) × (18 + 1) = 18
Question : Which chemical law proposes that "soft drinks and soda bottles are sealed under high pressure to increase the solubility of CO2?"
Option 1: Dalton’s Law
Option 2: Henry's Law
Option 3: Ohm's Law
Option 4: Raoult’s Law
Correct Answer: Henry's Law
Solution : The correct answer is Henry's Law.
Henry's Law is one of the gas laws formulated by the British chemist William Henry in 1803.
According to Henry's Law, the solubility of a gas in a liquid is directly proportional to the pressure of the
Question : Which of the following controls the wind speed?
Option 1: Pressure gradient
Option 2: Rotation of Earth
Option 3: Insolation
Option 4: None of the options is correct
Correct Answer: Pressure gradient
Solution : The correct answer is Pressure gradient.
Differences in air pressure can cause air masses to travel from one point to another. Air masses tend to move from high-pressure locations to low-pressure locations. As a result, winds blow from high-pressure zones to low-pressure areas. Hence
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