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Question : Directions: Which of the following diagrams represents the relationship among Fruits, Mango and Banana?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : We know that both mango and banana are fruits. So, their circles will lie inside that of fruits. But, mango and banana are not related to each other. So, their circles will not have a common area. The Venn diagram will be –
Hence, the second
Question : If $\sin \theta+\tan \theta=\mathrm{p}$ and $\tan \theta-\sin \theta=\mathrm{q}$, then which of the relation satisfies for given values of $\mathrm{p}$ and $\mathrm{q}$?
Option 1: $\mathrm{p}^2-\mathrm{q}^2=4 \sqrt{\mathrm{pq}}$
Option 2: $\mathrm{p}^2-\mathrm{q}^2=8 \sqrt{\mathrm{pq}}$
Option 3: $\mathrm{p}^2+\mathrm{q}^2=4 \sqrt{\mathrm{pq}}$
Option 4: $\mathrm{p}^2+\mathrm{q}^2=4 \mathrm{pq}$
Correct Answer: $\mathrm{p}^2-\mathrm{q}^2=4 \sqrt{\mathrm{pq}}$
Solution : Given, $\sin \theta+\tan \theta=\mathrm{p}$ and $\tan \theta-\sin \theta=\mathrm{q}$ Now, $\mathrm{pq}=(\tan \theta-\sin \theta)(\tan \theta+\sin \theta)$ Using $(a-b)(a+b)=a^2-b^2$ ⇒ $\mathrm{pq}=\tan^2\theta-\sin^2\theta$ ⇒ $\mathrm{pq}=\frac{\sin^2\theta}{\cos^2\theta}-\sin^2\theta$ ⇒ $\mathrm{pq}=\sin^2\theta(\frac{1}{\cos^2\theta}-1)$ ⇒ $\mathrm{pq}=\sin^2\theta(\frac{1-\cos^2\theta}{\cos^2\theta})$ We know, $\sin^2\theta+\cos^2\theta = 1$ ⇒ $\mathrm{pq}=\sin^2\theta(\frac{\sin^2\theta}{\cos^2\theta})$ ⇒ $\mathrm{pq}=\sin^2\theta\tan^2\theta$ And, $\mathrm{p^2}=(\sin \theta+\tan \theta)^2$ $=\sin^2 \theta+\tan^2 \theta+2\sin\theta\tan\theta$ Also, $\mathrm{q^2}=(\tan \theta-\sin \theta)^2$
Question : A person who is colourblind cannot distinguish between
Option 1: Black and yellow
Option 2: Red and green
Option 3: Yellow and white
Option 4: Green and blue
Correct Answer: Red and green
Solution : The correct answer is Red and green.
Colour blindness is a condition in which a person faces difficulty distinguishing certain colours, such as red and green. It is a disorder that affects one's ability to identify the differences between various shades of colour.
Question : Who among the following was the best-known Chahamana ruler?
Option 1: Prithviraja III
Option 2: Vigraharaja II
Option 3: Prithviraja I
Option 4: Vasudeva
Correct Answer: Prithviraja III
Solution : The correct answer is Prithviraja III.
The most well-known Chahamana king was Prithviraja III (1168–1192). He beat Sultan Muhammad Ghori of Afghanistan in 1191 but fell short of him the following year, in 1192.
Question : The growth of Bacteria is measured by which of the following?
Option 1: Hemocytometer
Option 2: Spectrophotometer
Option 3: Calorimeter
Option 4: Auxanometer
Correct Answer: Auxanometer
Solution : The answer is the Auxanometer.
The growth of bacteria is measured by an apparatus known as an auxanometer, which measures the increase in the growth of plants and bacteria. A calorimeter is used to measure the amount of heat involved in a chemical reaction. A
Question : The area of a sector of a circle that subtends a 22.5° angle at the centre is given as 346.5 cm². What will be the radius (in cm) of the circle? [Use $\pi=\frac{22}{7}$]
Option 1: 35
Option 2: 45
Option 3: 42
Option 4: 48
Correct Answer: 42
Solution : Given, Area = 346.5 cm$^2$ Angle ($\theta$) = 22.5° Let $r$ be the radius. Area $=\frac{\theta}{360°}\times \pi r^2$ ⇒ $346.5=\frac{22.5°}{360°}\times \frac{22}{7}\times r^2$ ⇒ $\frac{346.5\times360\times7}{22.5\times 22}=r^2$ ⇒ $r^2 = \frac{873180}{495}$ ⇒ $r^2=1764$ ⇒ $r=\sqrt{1764}$ ⇒ $r$ = 42 cm Hence, the correct answer is 42.
Question : Directions: Select the option that represents the letters that will complete the letter series when placed from left to right in the following blanks. Q W _ R T Q _ F R _ Q W _ _ T _ _ H R T
Option 1: F W T G R Q X
Option 2: E X T G R Q X
Option 3: E W T G R Q W
Option 4: E W T H S Q W
Correct Answer: E W T G R Q W
Solution : Given: Q W _ R T Q _ F R _ Q W _ _ T _ _ H R T
To fill the series we have to divide the series – Q W _ R T / Q
Question : Who referred to Mahatma Gandhi as "Father of the Nation" for the first time?
Option 1: Jawaharlal Nehru
Option 2: Sardar Vallabh Bhai Patel
Option 3: C. Rajagopalachari
Option 4: Subhas Chandra Bose
Correct Answer: Subhas Chandra Bose
Solution : The correct answer is Subhas Chandra Bose.
Subhas Chandra Bose, a prominent freedom fighter in India's struggle for independence, addressed Mahatma Gandhi as the "Father of the Nation" in one of his speeches. Bose was a fervent nationalist leader who played a significant
Question : Select the option that expresses the given sentence in passive voice. Suman was taking a nap
Option 1: A nap was being taken by Suman.
Option 2: A nap has been taken by Suman.
Option 3: A nap is being taken by Suman.
Option 4: A nap was taken by Suman.
Correct Answer: A nap was being taken by Suman.
Solution : The correct choice is the first 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 the subject in the
Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No Error'. Raising temperatures in the springtime signal plants and animals to come alive.
Option 1: raising temperatures in the
Option 2: springtime signal plants and
Option 3: animals to come alive,
Option 4: No Error
Correct Answer: raising temperatures in the
The correct term is rising (intransitive), which is commonly used to indicate a natural increase in temperature. Raising (transitive) generally refers to the act of lifting or elevating something physically.
Therefore, the correct sentence should
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