Correct Answer: Cardiac muscle

Solution : The correct option is Cardiac Muscle.

Connective tissue examples include dense connective tissue (which provides strong connections, such as tendons and ligaments); loose connective tissue (found throughout the body; it supports and connects other tissues and organs); Cartilage, bone, adipose tissue (which stores fat for energy, insulation and protection) and blood are all examples of connective tissue. Cardiac muscles are composed of a type of muscular tissue known as cardiac muscle tissue or myocardial tissue. 

Correct Answer: North-east

Solution : Firstly, we will draw the diagram as per the given instructions –

Now, we have to find the position of R with respect to Q.

So, R is in the northeast direction with respect to Q. Hence, the first option is correct.

Correct Answer: Rs. 2000

Solution : Let the sum be $\text{P}$ for both cases.
Time = 5 years and 4 years.
Difference = 150
According to the question:
By using the formula of Simple Interest: SI = $\frac{\text{P×R×T}}{100}$ where $P$ is principal, $T$ is time in years and $R$ is the rate of interest per annum.
$\frac{\text{P×7.5×5}}{100}-\frac{\text{P×7.5×4}}{100}$ = 150
⇒ $\frac{\text{7.5P}}{100}$ = 150
⇒ $\text{P}$ = Rs. 2000
Hence, the correct answer is Rs. 2000.

Correct Answer: gt819, ir1017

Solution : Given:
az225, cx423, ev621, _?, _ ?

az225→a + 2 = c; a and z are opposite pairs; 225 + 198 = 423
cx423→c + 2 = e; c and x are opposite pairs; 423 + 198 = 621
ev621→e + 2 = g; e and v are opposite pairs; 621 + 198 = 819
gt819→g + 2 = i; g and t are opposite pairs; 819 + 198 = 1017

So, gt819 and ir1017 are the missing terms of the series. Hence, the third option is correct.

Correct Answer: ×, +, ÷, –, =

Solution : Given:
31 * 2 * 60 * 30 * 15 * 49

Replace * with the mathematical signs and solve the equations one by one using BODMAS.
Let's check the options –
First options: ×, ÷, +, –, =
31 × 2 ÷ 60 + 30 – 15 = 49
On solving the L.H.S. of the given equation –
= 31 × 2 ÷ 60 + 30 – 15
= 31 × 0.033 + 30 – 15
= 1.023 + 30 – 15
= 16.023 ≠ 49
Second option: ×, –, +, ÷, =
31 × 2 – 60 + 30 ÷ 15 = 49
On solving the L.H.S. of the given equation –
= 31 × 2 – 60 + 30 ÷ 15
= 31 × 2 – 60 + 2
= 62 – 60 + 2
= 4 ≠ 49
Third option: –, ÷, +, ×, =
31 – 2 ÷ 60 + 30 × 15 = 49
On solving the L.H.S. of the given equation –
= 31 – 2 ÷ 60 + 30 × 15
= 31 – 0.033 + 30 × 15
= 31 – 0.033 + 450
= 480.967 ≠ 49
Fourth option: ×, +, ÷, –, =
31 × 2 + 60 ÷ 30 – 15 = 49
On solving the L.H.S. of the given equation –
= 31 × 2 + 60 ÷ 30 – 15
= 31 × 2 + 2 – 15
= 62 + 2 – 15
= 49

So, the fourth option satisfies the equation. Hence, the fourth option is correct.

Correct Answer: (2)

Solution : The correct option is the second option.

Explanation: It conveys the idea that the slow progress was due to the process of searching for them repeatedly.

The other options are not the best choice and also they do not convey the intended meaning of the sentence.

So, the sentence should be: "Our progress was slow through having to search for them at frequent intervals."

Correct Answer: Total solar eclipse

Solution : The correct answer is Total solar eclipse.

The arc of bright spots known as "Baily's beads" is visible during total and annular solar eclipses. They are known as "beads" because of the irregularity of light created by mountains and valleys on the lunar surface. They are named for the English astronomer Francis Baily, who first brought them to light after witnessing an eclipse in 1836.

Correct Answer: Twice

Solution : The correct answer is Twice.

By assaulting Surat twice, he made a clear statement to Aurangzeb. Due to its prominence as a commercial hub, it prospered between the 16th and 18th centuries. British India Regiment captain James Grant Duff claims that Shivaji attacked Surat on January 5, 1664. He was called as "mountain rat" by Aurangzeb.

Correct Answer: 48

Solution : The correct answer is 48.

The Tokyo Olympic Games took place in 2021, not 2020, due to the postponement caused by the COVID-19 pandemic. India had a commendable performance at the Tokyo Olympics in 2021, securing a total of seven medals. India's rank in the overall medal tally was 48th, marking one of the country's best showings at the Olympics. The medals included 1 gold, 2 silver, and 4 bronze, with notable achievements in events like weightlifting, badminton, and athletics.

Correct Answer: 0

Solution : Given: $a= 9.6,b= 4.44,$ and $c= 5.16$
We know,
If $a-b-c=0,$ then $a^3-b^3-c^3-3abc=0$
Here, $a-b-c=9.6-4.44-5.16=0$
So, $a^3-b^3-c^3-3abc=0$
Hence, the correct answer is 0.