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Question : Directions: What will come in the place of (?) in the following equation, if + and – are interchanged and × and ÷ are interchanged? 63 ÷ 3 + 14 × 7 – 16 = ?
Option 1: 113
Option 2: 103
Option 3: 203
Option 4: 213
Correct Answer: 203
Solution : Given: 63 ÷ 3 + 14 × 7 – 16 = ?
After interchanging + and –, × and ÷, the equation becomes – = 63 × 3 – 14 ÷ 7 + 16 = 63 × 3 – 2 + 16 = 189 –
Question :
The colour of human skin is produced by
Option 1:
Hemoglobin
Option 2:
Insulin
Option 3:
Adrenaline
Option 4: Melanin
Correct Answer: Melanin
Solution : The correct option is Melanin.
Melanin, a pigment generated by specialised cells known as melanocytes, is principally responsible for the colour of human skin. Melanin is responsible for the varied tones of skin colour found in different people and populations. Melanin is classified into two
Question : The strong gravitational pull of ___________exerted on the earth's surface causes the tides.
Option 1: Sun, moon and other planets
Option 2: Sun only
Option 3: Sun and moon only
Option 4: Moon only
Correct Answer: Sun and moon only
Solution : The correct option is the Sun and moon only.
Tides result from the gravitational attraction between the Earth, the moon, and the Sun. The moon's gravitational pull, being stronger on the side facing it, causes a bulge in Earth's oceans, creating
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bold part of the sentence. In case no improvement is needed, select "No Improvement."
No sane person or government can tolerate terrorist of any degree or kind.
(1) terrorism of any degree or kind
(2) torture of any degree or kind
(3) terrorise of any degree
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The sentence can be improved using the first option "terrorism of any degree or kind".
The noun "terrorism" refers to the unlawful use of violence and intimidation against civilians in the pursuit of political gains and is correctly used in the first option. This helps
Question : Comprehension: Read the passage and answer the questions given after it.
The savanna landscape is typified by tall grass and short trees. It is rather misleading to call the savanna 'tropical grassland' because trees are always present with the luxuriant tall grass. The terms 'parkland' or 'bush-veld' perhaps describe the landscape better.
Trees grow best towards the equatorial humid latitudes or along river banks but decrease in height and density away from the equator. They occur in clumps or as scattered individuals. The trees are deciduous, shedding their leaves in the cool, dry season to prevent excessive loss of water through transpiration, e.g. acacias. Others have broad trunks, with water-storing devices to survive through the prolonged drought such as baobabs and bottle trees. Trees are mostly hard, gnarled and thorny and may exude gum-like gum arable. Many trees are umbrella-shaped, exposing only a narrow edge to the strong winds.
Palms which cannot withstand the drought are confined to the wettest areas or along rivers. Vegetative luxuriance reaches its peak in the rainy season when trees renew their foliage and flower. In true savanna lands, the grass is tall and coarse, growing 6 to 12 feet high. The elephant grass may attain a height of even 15 feet! The grass tends to grow in compact tufts and has long roots which reach down in search of water. It appears greenish and well-nourished in the rainy season but turns yellow and dies down in the dry season that follows. The grass lies dormant throughout the long, rainless period and springs up again in the next rainy season.
In between the tall grass are scattered short trees and low bushes. As the rainfall diminishes towards the deserts the savanna merges into thorny scrub. In Australia, this scrubland is particularly well represented by a number of species: mallee, mulga, spinifex grass and other bushes.
The savanna, particularly in Africa, is the home of wild animals. It is known as the "big game country' and thousands of animals are trapped or killed each year by people from all over the world. Some of the animals are tracked down for their skins, horns, tusks, bones or hair, others are captured alive and sent out of Africa as zoo animals, laboratory specimens or pets. There is such a wealth of animal life in Africa that many of the animal films that we see at the cinema are actually taken in the savanna. There are, in fact, two main groups of animals in the savanna, the grass-eating herbivorous animals and the fleshing-eating carnivorous animals. The herbivorous animals are often very alert and move swiftly from place to place in search of green pastures.
They are endowed with great speed to run away from the savage flesh-eaters that are always after them. The leaf and grass-eating animals include the zebra, antelope, giraffe, deer, gazelle, elephant and okapi.
Many are well camouflaged species and their presence amongst the tall greenish-brown grass cannot be easily detected. The giraffe with such a long neck can locate its enemies a great distance away, while the elephant is so huge and strong that few animals will venture to come near it. It is well equipped with tusks and a trunk for defence.
Carnivorous animals like the lion, tiger, leopard, hyena, panther, jaguar, jackal, lynx and puma have powerful jaws and teeth for attacking other animals. Their natural colourings of light yellowish-brown, often with stripes like the tiger or spots like the leopard, match perfectly with the tawny background of the savanna. They often hide themselves in shady spots up in the branches or amidst the tall bushes, and many wild animals, as well as hunters themselves, are caught unawares in this manner.
Question: What is the main feature of the Savanna landscape?
Option 1: Tall grass and short trees.
Option 2: Dense forests with tall trees.
Option 3: Dry grass and low bushes.
Option 4: Tall trees and short grass.
Correct Answer: Tall grass and short trees.
Solution : The correct choice is the first option.
Explanation: The main feature of the savanna landscape, as described in the passage, is the presence of tall grass and short trees. This unique combination distinguishes savannas from typical 'tropical grasslands,' as
Question : Directions: If the cost of 16 kg of wheat is Rs. 384, what is the cost of 90 kg of wheat?
Option 1: Rs. 2,016
Option 2: Rs. 2,024
Option 3: Rs. 2,610
Option 4: Rs. 2,160
Correct Answer: Rs. 2,160
Solution : Given: The cost of 16 kg of wheat = Rs. 384
According to the question, The cost of 1 kg wheat = 384 ÷ 16 = 24 Rs. Therefore, the cost of 90 kg of wheat = 90 × 24 = 2160 Rs.
So,
Question : Concerning human geography, TFR stands for ____________.
Option 1: Total finance rate
Option 2: Total fall rate
Option 3: Total female ratio
Option 4: Total fertility rate
Correct Answer: Total fertility rate
Solution : The correct answer is the Total fertility rate.
In the field of human geography, TFR stands for "Total Fertility Rate." This rate is a statistical measure that represents the average number of children a woman would bear over her lifetime if she
Question : The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer. Residents should keep an / eye out for strangers / acting suspecting in their areas.
Option 1: eye out for strangers
Option 2: No error
Option 3: Residents should keep an
Option 4: acting suspecting in their areas.
Correct Answer: acting suspecting in their areas.
Solution : The correct choice is the fourth option.
The correct phrase is "acting suspiciously" instead of "acting suspicious". The word suspiciously is in the adverb form, which describes someone behaving in a way that suggests they may be involved in wrongdoing.
Therefore,
Question : If the ratio of the diameters of two right circular cones of equal height is 3 : 4, then the ratio of their volume will be:
Option 1: 3 : 4
Option 2: 9 : 16
Option 3: 16 : 9
Option 4: 27 : 64
Correct Answer: 9 : 16
Solution : The ratio of the diameters of two right circular cones of equal height = 3 : 4 Let diameter of 1st cone be $3x$. Diameter of 2nd cone $= 4x$ Radius of the 1st cone, $r_1 = \frac{3x}{2}$ Radius of
Question : Directions: In the question, a sentence is given with a blank to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives. Did the boys turn___ for football practice?
Option 1: up
Option 2: on
Option 3: back
Option 4: in
Correct Answer: up
Solution : The correct answer is the first option.
"Turn up" generally means to arrive or appear at a place, so it could be suitable if you want to know if the boys arrived for practice.
"Turn out" also means to appear or assemble for an event,
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