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Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
Two of the biggest corporate firms in the world are Apple and IBM (which both are) in the computer business.
(1) which are both
(2) both of which are
(3) which are
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct choice is the second option.
Explanation:
"Both of which are" is the most appropriate choice for the context, providing a clear and idiomatic way to express the idea that both Apple and IBM are in the computer business.
So, the correct sentence would
Question : A work was finished by L, P, and Q together. L and P together finished 50% part of the work and P and Q together finished 60% part of the work. Who among the three is most efficient?
Option 1: All are equally efficient
Option 2: L
Option 3: Q
Option 4: P
Correct Answer: Q
Solution : Let the total amount of work be a. ⇒ Work done by L and P together = $\frac{50}{100}$a = 0.5 a ⇒ Work done by Q alone = a – 0.5 a = 0.5 a Also, Work done by P and Q together = $\frac{60}{100}$a
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.
He stood _______ Ankita, but could not utter a single word for quite some time.
Option 1: to
Option 2: for
Option 3: before
Option 4: towards
Correct Answer: before
Solution : The third option is the correct choice.
Question : Aditya can complete a grill painting job in 20 hours, while Vinay can complete the same work in 15 hours. If Aditya and Vinay both work together, then in how many hours will the painting work be completed?
Option 1: $10 \frac{2}{3}$ hours
Option 2: $10$ hours
Option 3: $12$ hours
Option 4: $8 \frac{4}{7}$ hours
Correct Answer: $8 \frac{4}{7}$ hours
Solution : Given: Aditya can complete a grill painting job in 20 hours. Vinay can complete the same work in 15 hours. Let the total work be LCM of (20, 15) = 60 units ⇒ Efficiency of Aditya = $\frac{60}{20} = 3$ units/hour ⇒ Efficiency
Question : Which of the following is an extinct species?
Option 1: Hornbill
Option 2: Andaman wild pig
Option 3: Pink head duck
Option 4: Andaman teal
Correct Answer: Pink head duck
Solution : The correct option is Pink head duck.
The extinct species among the options you provided is the Pink-headed duck. The Pink-headed duck is a species of waterfowl that is believed to be extinct, with the last confirmed sightings dating back to the
Question : A train 180 m long moving at a speed of 20 m/sec overtakes a man moving at a speed of 10 m/sec in the same direction. The train passes the man in:
Option 1: 6 sec
Option 2: 9 sec
Option 3: 18 sec
Option 4: 27 sec
Correct Answer: 18 sec
Solution : Distance = length of train = 180 m Speed of train = 20 m/s Speed of main = 10 m/s The direction of both the train and the man is the same. So, relative speed = 20 - 10 = 10 m/s Required time
Question : $\triangle \mathrm{ABC} \sim \triangle \mathrm{DEF}$ and the perimeters of these triangles are 32 cm and 12 cm, respectively. If $\mathrm{DE}=6 \mathrm{~cm}$, then what will be the length of AB?
Option 1: 16 cm
Option 2: 14 cm
Option 3: 12 cm
Option 4: 18 cm
Correct Answer: 16 cm
Solution : If two triangles are similar, then their perimeters are directly proportional to the length of their corresponding sides. So, $\frac{\text{Perimeter of $\triangle$ABC}}{\text{Perimeter of $\triangle$ABC}}= \frac{AB}{DE} = \frac{32}{12}$ ⇒ $AB = \frac{32}{12}\times 6$ ⇒ $AB = 16\ \mathrm{cm}$ Hence, the correct answer is 16 cm.
Question : If $a+\frac{1}{a-2}=4$, then the value of $(a-2)^{2}+(\frac{1}{a-2})^{2}$ is:
Option 1: 0
Option 2: 2
Option 3: –2
Option 4: 4
Correct Answer: 2
Solution : Given: $a+\frac{1}{a-2}=4$ Subtracting 2 from both sides, ⇒ $a-2+\frac{1}{a-2}=2$ Squaring both sides, ⇒ $( a-2)^2+\frac{1}{( a-2)^2} + 2=2^2$ ⇒ $( a-2)^2+\frac{1}{( a-2)^2}=2^2-2$ ⇒ $( a-2)^2+\frac{1}{( a-2)^2}=2$ Hence, the correct answer is 2.
Question : The mahogany tree is found in which of the following types of vegetation?
Option 1: Mangrove forests
Option 2: Tropical evergreen forests
Option 3: Tropical thorn forests
Option 4: Montane forests
Correct Answer: Tropical evergreen forests
Solution : The correct answer is Tropical evergreen forests
Tropical evergreen forests are prevalent in areas characterised by consistently high temperatures and abundant rainfall. These ecosystems, often referred to as rainforests, support a diverse array of plant and animal life. Among the notable flora found
Question : The Rourkela steel plant was set up in collaboration with Germany in which the state of India?
Option 1: Jharkhand
Option 2: Bihar
Option 3: Assam
Option 4: Odisha
Correct Answer: Odisha
Solution : The correct option is Odisha.
One of India's biggest steel production sites is the Rourkela Steel Plant. It is located in the city of Rourkela in the Sundargarh district of Odisha. One of India's earliest integrated steel factories, the Rourkela Steel Plant was founded in
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