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Question : Penicillin is extracted from____.
Option 1: yeast
Option 2: algae
Option 3: fungus
Option 4: lichen
Correct Answer: fungus
Solution : The correct option is fungus.
The fungus Penicillium notatum or Penicillium chrysogenum can be used to produce penicillin, an antibiotic. Penicillin is an antibiotic that prevents pathogenic bacteria from forming cell walls, preventing the growth of harmful bacteria in the process. Eukaryotic organism, which includes
Question : To do a certain task X would take 3 times as long as Y and Z together, and Z would take 4 times as long as Y and X together. Three of them together can complete the task in 10 days. How much time is taken by X and Z to complete the task?
Option 1: $18 \frac{2}{9}$ days
Option 2: $20 \frac{1}{9}$ days
Option 3: $21 \frac{1}{9}$ days
Option 4: $22 \frac{2}{9}$ days
Correct Answer: $22 \frac{2}{9}$ days
Solution : Given, To do a certain task, X takes 3 times as long as Y and Z together, Z takes 4 times as long as Y and X together, Three of them together can complete the task in 10 days. We know, Total work
Question : Directions: Select the option in which the given figure is embedded (rotation is NOT allowed).
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of the question figure with all the option figures, it is evident that the given question figure is embedded only in the second option figure.
Hence,
Question : Directions: In the following question, find the odd number from the given alternatives.
Option 1: 512
Option 2: 841
Option 3: 576
Option 4: 289
Correct Answer: 512
Solution : Let's check the options – First option: 512; 512 is not a perfect square of any natural number. Second option: 841; 841 is the perfect square of 29. Third option: 576; 576 is the perfect square of 24. Fourth option: 289; 289 is the perfect
Question : Directions: Speed of five cars C1, C2, C3, C4, and C5 are compared. The speed of C1 is more than only one car. The speed of C5 is more than four cars. The speed of C4 is more than C1 but less than C3 and C5. Speed of how many cars is less than the speed of C3?
Option 1: 0
Option 2: 1
Option 3: 3
Option 4: 2
Correct Answer: 3
Solution : Given: (I) Speed of five cars C1, C2, C3, C4, and C5 are compared. _, _, _, _, _ (II) Speed of C1 is more than only one car. _ > _ > _ > C1 > _ (III) Speed of C5 is more than
Question : While measuring a line segment of length 10 cm, it was measured 10.2 cm by mistake, what is the percentage error in measurement?
Option 1: 1%
Option 2: 0.5%
Option 3: 0.2%
Option 4: 2%
Correct Answer: 2%
Solution : Given: Correct measurement value = 10 cm Measurement by mistake = 10.2 cm Error = 10.2 – 10 = 0.2 Error percentage = $\frac{\text{Error}}{\text{Correct measurement value}}\times100$ = $\frac{0.2}{10}\times100$ = 2 Hence, the correct answer is 2%.
Question : Select the option that expresses the given sentence in passive voice.
The company is launching a new product next month.
Option 1: The new product will be launched by the company next month.
Option 2: A new product is being launched by the company next month.
Option 3: The launching of a new product by the company is next month.
Option 4: Next month, the company will launch a new product.
Correct Answer: A new product is being launched by the company next month.
Solution : The correct answer is the second option.
Passive voice is the voice in which the object experiences an action rather than the person who performs the action. Hence, the object in the active sentence becomes
Question : Directions: If a mirror is placed on the line MN, then which of the answer figures is the right mirror image of the given figure?
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed at the bottom of the figure (on line MN). So, the top of the reflected image will appear as the
Question : The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
My cousin, Jawahar, / visited me at home / and asked me / what I am reading.
Option 1: what I am reading
Option 2: visited me at home
Option 3: and asked me
Option 4: My cousin, Jawahar
Correct Answer: what I am reading
Solution : The correct choice is the first option.
The error lies in the verb tense. Since the main clause is in the past tense, the subordinate clause should also be in the past tense to maintain grammatical consistency.
Therefore, the correct sentence
Question : If $y+\frac{1}{y}=3$, then what is the value of $\frac{1}{y^3}+y^3 ?$
Option 1: 12
Option 2: 27
Option 3: 24
Option 4: 18
Correct Answer: 18
Solution : Use: Use the following formula to solve the question: $(y+\frac{1}{y})^3=y^3+\frac{1}{y^3}+3(y+\frac{1}{y})$ ⇒ $y^3+\frac{1}{y^3}=(y+\frac{1}{y})^3-3(y+\frac{1}{y})$ ⇒ $y^3+\frac{1}{y^3}=3^3-3×3$ ⇒ $\frac{1}{y^3}+y^3 = 18$ Hence, the correct answer is 18.
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