Correct Answer: (3)

Solution : The error lies in the third part of the sentence.

When one is used in a sentence, it is always followed by the indefinite pronoun one to make the sentence grammatically accurate. Thus, he should be replaced with one.

Therefore, the correct sentence is: "When one hears of the incident about the plane crash, one feels very sorry."

Correct Answer: bats

Solution : The correct option is bats.

The scientific name for the spotted bat is "Euderma maculatum". The spotted bat is a species found in North America that is distinguished by the big white dots on its black fur. Because of its distinctive colouring, it is among the most recognisable bat species. The western regions of North America, extending from southern Canada to Mexico, are home to the species.

Correct Answer: 6

Solution : The given figure can be labeled as shown below –

There are 6 quadrilaterals in the above figure. They are ADFE, FEBC, ADCE, BCFA, AFCE, ABCD.

Hence, the second option is correct.

Correct Answer: N16R

Solution : Given:
J2Z, K4X, L7V, M11T, ?

Add 1 to the place value of the first letter and add consecutive natural numbers starting from 2 to the number of the previous term respectively, and subtract 2 from the third letter to obtain the next term in the series –
J2Z→J + 1 = K; 2 + 2 = 4; Z – 2 = X→K4X
K4X→K + 1 = L; 4 + 3 = 7; X – 2 = V→L7V
L7V→L + 1 = M; 7 + 4 = 11; V – 2 = T→M11T
M11T→M + 1 = N; 11 + 5 = 16; T – 2 = R→N16R

So, N16R is the missing term of the series. Hence, the fourth option is correct.

Correct Answer: 1

Solution : $\cot \theta=\frac{1}{\sqrt{3}}$
⇒ $\theta=60^{\circ}$
So, $\frac{2-\sin ^2 \theta}{1-\cos ^2 \theta}+\left(\operatorname{cosec}^2 \theta-\sec \theta\right)$
= $\frac{2-\sin ^2 60^{\circ}}{1-\cos ^2 60^{\circ}}+\left(\operatorname{cosec}^2 60^{\circ} -\sec 60^{\circ}\right)$
= $\frac{2- \frac{3}{4}}{1-\frac{1}{4}}+\frac{4}{3} -2$
= $\frac{\frac{5}{4}}{\frac{3}{4}}+\frac{4}{3} -2$
= $\frac{5}{3}+\frac{4}{3} -2$
= $\frac{9}{3} -2$
= 3 – 2
= 1
Hence, the correct answer is 1.
 

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Correct Answer:

 Sarojini Naidu

Solution : The correct answer is Sarojini Naidu.

Sarojini Naidu was the first female Governor of a state in independent India. She served as the Governor of the United Province from 1947 to 1949. Sucheta Kripalani was the country's first woman Chief Minister and held the position of Chief Minister of the Uttar Pradesh Government from 1963 to 1967. Indira Gandhi was India's first female Prime Minister. Vijaya Lakshmi Pandit was the first woman to hold the position of President of the United Nations General Assembly.

Correct Answer: 37.6

Solution : Number of families whose monthly expenditure on education is INR 2500 or more but below INR 4000 = 47 + 55 + 70 = 172
Number of families whose monthly expenditures on education are INR 4500 or more but below INR 6000 = 52 + 43 + 30 =125 
Required percentage gain = $\frac{172 - 125}{125}\times 100\% = 37.6\%$
Hence, the correct answer is 37.6.

Correct Answer: 63

Solution : According to the question
Total employees = 450
⇒ number of employees in department B_​ = $\frac{14}{100}$ ​× 450_​
= 0.14 × 450 = 63
Hence, the correct answer is 63.

Correct Answer: 8

Solution : (72 × 73 × 78 × 76) divided by 35
We divide every number individually by 35, then the total remainder is also divided by 35 to get the required remainder.
$\frac{(72 × 73 × 78 × 76)}{35}$
⇒ $\frac{(2 × 3 × 8 × 6)}{35}$
⇒ $\frac{288}{35}$
⇒ $\frac{8}{35}$
Since 8 cannot be divided further by 35
$\therefore$ The required remainder is 8.
Hence, the correct answer is 8.

Correct Answer: 86%

Solution : Number of employees in the marketing department = $\frac{24}{100} \times 800$ = 192
Number of male employees = 165.
∴ Required percentage = $\frac{165}{192} \times 100$ = 85.93% ≈ 86%
Hence, the correct answer is 86%.