Correct Answer: 7.3 m³

Solution : Radius, $r$ = 4.2 m
Volume of the hemisphere = $\frac{2}{3} \pi r^3$
= $\frac{2}{3}×\frac{22}{7}×4.2^3$
= 2 × 22 × 0.2 × 4.2 × 4.2
= 155.232
So, $\frac{1}{21}$th of the volume of the hemisphere
= $\frac{155.232}{21}$
= 7.3 m³
Hence, the

Correct Answer: will prevent the hand sanitiser of

Solution : The correct choice is the third option.

The correct preposition to use after prevent is from, so it should be "prevent the hand sanitiser from drying out your skin". "Prevent from" is the standard construction when talking about avoiding a

Correct Answer: 11 days

Solution : Given: Kunal = $\frac{7}{4}$ of ketan
Efficiency of Kunal : Efficiency of ketan = 7 : 4
Total Efficiency = (7 + 4) = 11
Total work = Efficiency × Number of days = 11 × 7 = 77
Now, Kunal's efficiency = 7

Correct Answer: 1, 2, 5, 3, 4

Solution : Given:
1. Paper   2. Parade   3. Postal   4. Praise   5. Picture

Step 1: Compare the first letter of each word. Since all the words start with the same letter P, move on to the next letter.
Step 2: The second

Correct Answer: Z

Solution : Given:
Y, T, O, J, E, ?

In the above-given series, subtract 5 from the place value of each letter.
Y – 5 = T; T – 5 = O; O – 5 = J; J – 5 = E; E – 5 = Z

Correct Answer: 2 and 24

Solution : Given:
I. 18 ÷ 3 + 6 × 2 – 8
II. 15 × 3 – 45 ÷ 5 + 30

After interchanging + and – the equation becomes –
I. 18 ÷ 3 – 6 × 2 + 8
 = 6 –

Correct Answer: more

Solution : The third option is correct.

Here, more is the correct choice. When making comparisons, we typically use "more" before an adjective or adverb to denote a higher degree or quantity. In this case, we are comparing the distance of the school to a mile.

Therefore,

Correct Answer: OIAAO

Solution : Given:
ROYAL is coded as HWUKN.

Reverse the order of the letters of ROYAL and subtract 4 from the place value of each letter.
 
Thus, ROYAL is written as HWUKN,
Similarly, follow the same pattern for SEEMS –
 

So, SEEMS is coded as OIAAO in

Correct Answer: Endosphere

Solution : The correct answer is Endosphere.

The atmosphere is divided into five layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The endosphere is not part of this layer.

Correct Answer: Sport

Solution : The correct answer is Sport.

The Youth Affairs and Sports Ministry has proposed a bill aimed at preventing doping in sports. The legislation prohibits athletes, support personnel, and others from engaging in doping, with violations leading to consequences such as result disqualification, forfeiture of medals,