Correct Answer: work

Solution : The first option is the correct choice.

Explanation: The correct sentence uses the present participle form "working" after the auxiliary verb "have." When forming the present perfect continuous tense, we use "have/has been" followed by the present participle (verb + ing). In this

Correct Answer: 3

Solution : Given: $\tan 45^{\circ}+\sec 60^{\circ}=x$
⇒ $1+2=x$
$\therefore x=3$
Hence, the correct answer is 3.

Correct Answer: Rs. 2000

Solution : Total amount = Rs. 2420
Rate, $R$ = 10%
Time, $n$ = 2
Let $P$ be the sum.
Total amount = $P(1+\frac{R}{100})^{n}$ where $P$ is principal, $R$ is the rate of interest per annum compounded annually and $n$ is time in years.
⇒ 2420

Correct Answer: Magnesium

Solution : The correct option is Magnesium.

The wire in flash bulbs is made of magnesium (Mg). When an electric current passes through the magnesium wire, it rapidly oxidizes, producing an intense burst of light. This combustion reaction is highly exothermic and provides the brief and intense

Correct Answer: pulled through

Solution : The correct choice is the second option.

The phrase pulled through is used to express successfully overcoming a difficult situation, which fits the context of exams. It conveys the idea that, despite being a weak student, the person managed to succeed or pass the

Correct Answer: 50

Solution : Let the capacity of the tank as $V$. 
The rates at which pipes A, B, and C fill the tank are $\frac{V}{10}$, $\frac{V}{15}$, and $\frac{V}{30}$ units per hour, respectively.
The rate at which pipe D empties the tank is $\frac{V}{x}$ units per hour.
In the

Correct Answer: 3

Solution : From the histogram provided,
The students who obtained 30 or more marks but than less 40 are the students who are in the class interval 30 – 40 = 3
Hence, the correct answer is 3.

Correct Answer: $\frac{9}4$ cm

Solution : Given, PT = 5 cm, PA = 4 cm and AB = x cm,
Secant PB = (4 + x) cm.
As we know when a tangent and secant are drawn from a common point outside the circle, then the square of the tangent

Correct Answer: 1

Solution : $\mathrm{(1+cot^2\theta)(1-cos\theta)(1+cos\theta)}$
$=\mathrm{(1+cot^2\theta)(1-cos^2\theta)}$
$=\mathrm{(cosec^2\theta)(sin^2\theta)}$
$=1$
Hence, the correct answer is 1.

Correct Answer: 2019

Solution : The correct option is 2019.

The Jammu and Kashmir Legislative Council was formally abolished on October 31, 2019. This followed the passage of the Jammu and Kashmir Reorganisation Act, 2019, which reorganised the state into the Union Territories of Jammu Kashmir and Ladakh. As