Correct Answer: 6

Solution : HCF is the highest common factor.
48 = 2 × 2 × 2 × 2 × 3
54 = 2 × 3 × 3 × 3
The HCF of 54 and 48 = 2 × 3 = 6
Hence, the correct answer is 6.

Correct Answer: Plastids

Solution : The correct option is Plastids.

Plastids are membrane-bound organelles found in plant cells and some algae. They encompass chloroplasts, which are crucial for photosynthesis. Animal cells lack plastids but contain other organelles, such as mitochondria for energy production and lysosomes for cellular digestion. The

Correct Answer: He best understand that

Solution : The correct choice is the first option.

To maintain a proper subject-verb agreement, we have to use "understands" with the pronoun "he".

Therefore, the correct sentence will be: "He best understands that because of the fight, it is no longer his decision

Correct Answer: 0

Solution : Given:
200 ÷ 100 × 300 ÷ 200 + 10 – 2 × 40 = ?

On interchanging the mathematical signs, we get –
= 200 + 100 – 300 + 200 ÷ 10 × 2 – 40
= 200 + 100 – 300 +

Correct Answer: 40

Solution : Let the cost price of one article be C and the selling price of one article be S. 
Given that the cost price of 50 articles is the same as the selling price of $x$ articles.
⇒ 50 × C = $x$ × S
It's

Correct Answer: $17\frac{1}{7}$ days

Solution : Given:
A can do a piece of work in 30 days while B can do it in 40 days.
(A + B)'s work in 1 day $=\frac{1}{30} + \frac{1}{40}=\frac{4+3}{120} = \frac{7}{120}$
$\therefore$ (A + B) can complete the work in $=\frac{120}{7} = 17\frac{1}{7}$ days

Correct Answer: Sourav

Solution : Given: 
1. Aman is to the immediate right of Chaman who is second to the right of Sourav.
2. Biraj is to the immediate left of Chaman.

From the above-given information, the following seating arrangement can be drawn –
All of them are sitting around

Correct Answer: $\frac{9155}{2208}$

Solution : Given expression,
$\frac{5}{12} \times \frac{7}{12} \div\left(\frac{1}{75}+\frac{5}{12}\right.$ of $\left.\frac{36}{25}\right)+\frac{4}{5} \times \frac{75}{16}$
Using the BODMAS Rule,
B – Brackets, O – Of, D – Division, M – Multiplication A – Addition, and S – Subtraction
= $\frac{5}{12}\times\frac{7}{12}\div(\frac{1}{75}+\frac{5}{12}\times\frac{36}{25})+\frac{4}{5}\times\frac{75}{16}$
= $\frac{5}{12}\times\frac{7}{12}\div(\frac{1}{75}+\frac{5\times3}{25})+\frac{4}{5}\times\frac{75}{16}$
= $\frac{5}{12}\times\frac{7}{12}\div(\frac{1}{75}+\frac{15}{25})+\frac{4}{5}\times\frac{75}{16}$
= $\frac{5}{12}\times\frac{7}{12}\div(\frac{1+45}{75})+\frac{4}{5}\times\frac{75}{16}$
= $\frac{5}{12}\times\frac{7}{12}\div\frac{46}{75}+\frac{4}{5}\times\frac{75}{16}$
= $\frac{5}{12}\times\frac{7}{12}\times\frac{75}{46}+\frac{4}{5}\times\frac{75}{16}$

Correct Answer: 2380

Solution : The total number of boys in all these 8 schools is 8000.
Number of boys in school P = $\frac{7}{100}×8000=560$
Number of boys in school R = $\frac{8}{100}×8000=640$
Number of boys in school T = $\frac{17}{100}×8000=1360$
Number of boys in school W = $\frac{3}{100}×8000=240$
The

Correct Answer: were

Solution : The correct choice is the third option.

Explanation: When the subject is plural, the verb must also be plural to maintain grammatical correctness. In this sentence, "twenty pairs of different-coloured ear muffs" serve as the subject. The word "pairs" indicates a plurality, and therefore,