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Question : Which of the following phenomena is supposedly associated with global warming?
Option 1: Southern oscillations
Option 2: El Nino
Option 3: La Nino
Option 4: El Nino Modiki
Correct Answer: El Nino Modiki
Solution : The correct answer is El Nino Modoki.
El Nio Modoki is associated with global warming. Climate change may impact the frequency and severity of El Nio Modoki occurrences, according to some studies. El Nio Modoki events may become more common due to the
Question : A, B and C together can complete a work in 12 days. A and B alone can do the same work in 36 days. In how many days can C alone complete the same work?
Option 1: 48
Option 2: 25
Option 3: 12
Option 4: 36
Correct Answer: 36
Solution : Given: A and B alone can do the same work in 36 days. Let the total work = LCM of (12, 36, 36) = 36 units Efficiency of A $=\frac{36}{36} = 1$ unit per day Efficiency of B $=\frac{36}{36} = 1$ unit per day Efficiency
Question : A cloth merchant sold half of his cloth at a 40% profit, half of the remaining at a 40% loss, and the rest was sold at the cost price. In the total transaction, his gain or loss will be:
Option 1: 20% gain
Option 2:
25% loss
Option 3:
10% gain
Option 4:
15% loss
Correct Answer:
Solution : Let the cost price of the cloth be $\mathrm{Rs.}\;\mathrm{C}$. The merchant sold half of his cloth at a $40\%$ profit. The selling price for this part $=\mathrm{0.5C + 0.4 \times 0.5C = 0.7C}$ He sold half of the remaining at a $40\%$ loss. The
Question : Choose the sentence with no spelling errors.
Option 1: Take the offence of "lokcing on".
Option 2: Take the offence of "locking on".
Option 3: Take the ofence of "locking on".
Option 4: Take the ofense of "locking on".
Correct Answer: Take the offence of "locking on".
Solution : The correct choice is the second option.
Question : In a computer system, which device is functionally opposite of a keyboard?
Option 1: Trackball
Option 2: Joystick
Option 3: Mouse
Option 4: Printer
Correct Answer: Printer
Solution : The correct option is the Printer.
A printer and a keyboard function in the exact opposite ways. A keyboard is the most widely used input device, which consists of a row of keys resembling those on a typewriter and is used to enter data
Question : Which of the following elements is the densest naturally occurring element?
Option 1: Palladium
Option 2: Iridium
Option 3: Ruthenium
Option 4: Osmium
Correct Answer: Osmium
Solution : The correct answer is Osmium.
Osmium is commonly considered the densest naturally occurring element. It is a hard metal that belongs to the platinum group of elements. Its symbol is Os, and its atomic number is 76. It is glossy and blue-grey or blue-black
Question : Direction: Select the missing number from the given responses.
Option 1: 14
Option 2: 16
Option 3: 21
Option 4: 22
Correct Answer: 16
Solution : Given:
The middle number in a row is the product of the first number and the square root of the third number.
In row 1, the square root of 4 = 2 and 14 = 7
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Option 1:
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 on the right side of the figure (on line MN). So, the left side of the reflected image will appear
Question : In the following graph, the production of Raggi in 4 consecutive years is plotted. In which year the production of Raggi is maximum?
Option 1: 2020
Option 2: 2017
Option 3: 2019
Option 4: 2018
Correct Answer: 2018
Solution : From the graph, it is clear that the year 2018 has the maximum Raggi production of 4500. Hence, the correct answer is 2018.
Question : G is the centroid of the equilateral triangle ABC. If AB = 10 cm, then the length of AG (in cm) is:
Option 1: $\frac{5 \sqrt3}{3}$
Option 2: $\frac{10 \sqrt3}{3}$
Option 3: $5 \sqrt3$
Option 4: $10\sqrt 3$
Correct Answer: $\frac{10 \sqrt3}{3}$
Solution : AB = 10cm Since AD is the perpendicular bisector of BC, ⇒ BD = 5cm and $\angle$ADB = 90° ⇒ AD = $\sqrt{\text{AB}^{2}-\text{BD}^{2}}$ = $\sqrt{10^{2}-5^{2}}$ = $\sqrt{75}$ = $5\sqrt{3}$ cm Since G is the centroid, AG : GD = 2 : 1 ⇒ AG
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