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Question : If $\operatorname{cosec} \theta=\frac{b}{a}$, then $\frac{\sqrt{3} \cot \theta+1}{\tan \theta+\sqrt{3}}$ is equal to:
Option 1: $\frac{\sqrt{b^2-a^2}}{b}$
Option 2: $\frac{\sqrt{b^2-a^2}}{a}$
Option 3: $\frac{\sqrt{a^2+b^2}}{a}$
Option 4: $\frac{\sqrt{a^2+b^2}}{b}$
Correct Answer: $\frac{\sqrt{b^2-a^2}}{a}$
Solution : Given, $\operatorname{cosec} \theta=\frac{b}{a}$ ⇒ $\sin\theta=\frac ab$ We have to find the value of $\frac{\sqrt{3} \cot \theta+1}{\tan \theta+\sqrt{3}}$ We know, $\cot\theta=\frac{\cos\theta}{\sin\theta}$ and $\tan\theta=\frac{\sin\theta}{\cos\theta}$ $\frac{\sqrt{3} \cot \theta+1}{\tan \theta+\sqrt{3}}=\frac{\sqrt3\times\frac{\cos\theta}{\sin\theta}+1}{\frac{\sin\theta}{\cos\theta}+\sqrt3}$ = $\frac{\cos\theta(\sqrt3\cos\theta+\sin\theta)}{\sin\theta(\sin\theta+\sqrt3\cos\theta)}$ = $\frac{\cos\theta}{\sin\theta}$ = $\frac{\sqrt{1-\sin^2\theta}}{\sin\theta}$ [As $\sin^2\theta+\cos^2\theta=1$] = $\frac{\sqrt{1-(\frac ab)^2}}{\frac ab}$ = $\frac{\sqrt{b^2-a^2}}{a}$ Hence, the correct answer is
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.
The new discovery is ___________phenomenal.
Option 1: novelly
Option 2: indeed
Option 3: always
Option 4: beautifully
Correct Answer: indeed
Solution : The correct choice is the second option.
It is used to emphasise a statement, indicating that something is true or accurate. In the given sentence, it adds emphasis to the extraordinariness of the discovery.
The meanings of the other options are as follows:
Question : Directions: Each vowel in the word CAPSULE is changed to the previous letter in the English alphabetical series and each consonant is changed to the following letter in the English alphabetical series. In the newly formed word, how many alphabets are there in the English alphabetical series between the alphabet which is 3rd from the left and 3rd from the right?
Option 1: Three
Option 2: Four
Option 3: One
Option 4: Two
Correct Answer: Two
Solution : Given: Each vowel in the word CAPSULE is changed to the previous letter in the English alphabetical series and each consonant is changed to the following letter in the English alphabetical series.
In the newly formed word, Q is 3rd from left and T
Question : In which year did Babur defeat Rana Sanga at Khanwa?
Option 1: 1531
Option 2: 1527
Option 3: 1529
Option 4: 1525
Correct Answer: 1527
Solution : The correct option is 1527.
On March 17, 1527, Babur triumphed over Rana Sanga in the Battle of Khanwa. An important military conflict known as the Battle of Khanwa occurred close to the town of Khanwa in modern-day Rajasthan, India. The triumph strengthened Babur's hold
Question : Select the most appropriate SYNONYM of the bracketed word in the following sentence to fill in the blank. The text_________ (implies) to several themes that need closer examination.
Option 1: alludes
Option 2: deceives
Option 3: embellishes
Option 4: apprehends
Correct Answer: alludes
Solution : The correct choice is the first option.
Imply means to suggest, indicate, or express something indirectly without explicitly stating it. Alludes is the appropriate synonym, as it means to suggest or indirectly refer to something.
Question : Entamoeba histolytica is a parasite found in man's
Option 1: liver
Option 2: intestines
Option 3: lungs
Option 4: kidneys
Correct Answer: intestines
Solution : The correct option is - intestines
Entamoeba histolytica infects the human gastrointestinal tract, typically the large intestine (colon). It can be transmitted through the ingestion of contaminated food or water, or through close contact with infected individuals.
Question : Directions: In a certain code language, TELEVISION is written as UDMDWKQKMP and PUNISHMENT is written as QTOHTJKGLV. How will HELICOPTER be written in that language?
Option 1: IDMHDQCVNT
Option 2: IDMHQDVNCT
Option 3: IDMHDQNVCT
Option 4: IDMHDQVCNT
Correct Answer: IDMHDQNVCT
Solution : Given: TELEVISION is coded as UDMDWKQKMP PUNISHMENT is coded as QTOHTJKGLV
Add and subtract 1 alternatively from the place values of the first 5 letters, and add and subtract 2 alternatively from the place values of the remaining letters. Like, TELEVISION ⇒ T + 1
Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : According to the given figures – 1. A figure at the centre rotates 90° in the anti-clockwise direction. 2. The letters are placed diagonally – In Box 1, the letters M and N are placed diagonally in the southwest and northeast directions. In Box 2, the
Question : The remainder of the term $9+9^2+\ldots+9^{(2 n+1)}$ when divided by 6 is:
Option 1: 1
Option 2: 4
Option 3: 2
Option 4: 3
Correct Answer: 3
Solution : Given, $9+9^2+\ldots+9^{(2 n+1)}$ is divided by 6 Consider, $9+9^2+\ldots+9^{(2 n+1)}$ Here, for each term in the series, the remainder when divided by 6 is 3. The sum of the remainder of each term = 3 + 3 + 3 + ............+ up to 2n +
Question : Directions: Select the option that is related to the fourth term in the same way as the first term is related to the second term and the fifth term is related to the sixth term. AKV : ZIS :: ? : ENI :: PQR : OOO
Option 1: FOL
Option 2: EPL
Option 3: FPL
Option 4: EQL
Correct Answer: FPL
Solution : Given: AKV : ZIS :: ? : ENI :: PQR : OOO
Subtract 1, 2, and 3 from the place value of the first, second and third letters respectively, to obtain the required missing term – Like, AKV : ZIS→ A – 1 = Z;
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