Correct Answer: $(3+\sqrt{3})$ metres

Solution :
CD = 2 metres
BD = $x$ metre
AB = Tree = $h$ metre
From ∆ ABC,
tan 45° = $\frac{AB}{BC}$
⇒ $1 = \frac{h}{x+2}$
$\therefore h = (x + 2)$ metre .....(i)
From ∆ ABD,
$\tan 60° = \frac{AB}{BD}$
⇒ $\sqrt{3} = \frac{h}{x}$

Correct Answer: stem

Solution : The correct option is the stem.

The bulb of an onion is a modified underground stem that stores nutrients for the plant's growth, and reproduction. Scales are made up of layers of modified leaves. When growth resumes, the basal plate serves as an attachment

Correct Answer: MJDWF

Solution : Given:
CHART is written as GDASS.

Add and subtract 1 from the place value of the letters of CHART and the middle letter of the word will remain the same then shuffle the position of the letters as shown below to get the required code.

Correct Answer: Displacement

Solution : The correct option is Displacement.

The area under the curve of a velocity-time graph, between the curve and two specific time axes, represents the displacement of an object during that time interval. This is based on the fact that the area under the velocity-time curve

Correct Answer: 1 : 4

Solution : Given: 30% × (B – A) = 18% × (B + A)
⇒ $\frac{30}{100}$ × (B – A) = $\frac{18}{100}$ × (B + A)
⇒ 5 × (B – A) = 3 × (B + A)
⇒ 5B – 5A = 3B +

Correct Answer: $\sin A$

Solution : $(\operatorname{cosec}A+\cot A)(1 - \cos A)$
$=\left(\frac{1}{\sin A} + \frac{\cos A}{\sin A}\right)(1 - \cos A)$
$=\left(\frac{1 + \cos A}{\sin A}\right)(1 - \cos A)$
$=\frac{1 - \cos^2 A}{\sin A}$
$=\frac{\sin^2 A}{\sin A}$ [We know that $1 - \cos^2 A = \sin^2 A$]
$=\sin A$
Hence, the

Correct Answer: 2,800

Solution : Let the share of B be $x$.
 A = INR 500 more than B, so A $=x + 500$
 C = INR 300 more than A, so C $=x + 500 + 300 = x+ 800$
According to the question,
$x + (x + 500)

Correct Answer: plants

Solution : The correct option is plants.

Oxygen is cycled through the environment in a similar way to how water moves from the sky to the earth and back in the water cycle. Beginning with plants, the oxygen cycle begins. Through a process known as photosynthesis,

Correct Answer: $\pm 1$

Solution : $a+\frac{1}{b}=b+\frac{1}{c}$
⇒ $(a-b) = \frac{(b-c)}{bc}$ ----------(i)
$a+\frac{1}{b}=c+\frac{1}{a}$
⇒ $(a-c) = \frac{(b-a)}{ba}$ ----------(ii)
$b+\frac{1}{c}=c+\frac{1}{a}$
⇒ $(b-c) = \frac{(c-a)}{ca}$ -----------(iii)
Multiplying (i), (ii) and (iii),
⇒ $(a-b)(a-c)(b-c) = \frac{(b-c)(b-a)(c-a)}{bc×ba×ca}$
⇒ $1 = \frac{1}{(abc)^2}$
⇒ $abc = \pm 1$
Hence, the correct answer is $\pm 1$.

Correct Answer: Phosphoric acid

Solution : The correct answer is Phosphoric Acid.

Sour taste of coca cola is due to presence of phosphoric acid in it. Food grade phosphoric acid in an additive which gives acidic taste to the food and beverages and acts as a stabiliser and antioxidant. It