Correct Answer: $50$%

Solution : Let the principal be Rs. $x$.
Rate of interest = R%
Time = 3 years
Amount = $3\frac{3}{8}=3.375x$
We know, $\text{Total amount}=\text{Principal}×(1+\frac{\text{Rate}}{100})^{\text{Time}}$
$⇒3.375x = x(1 + \frac{R}{100})^{3}$
$⇒3.375 =(1 + \frac{R}{100})^{3}$
$⇒(1 + \frac{R}{100})^{3} = (1.5)^{3}$
$⇒(1 + \frac{R}{100}) = (1.5)$
$⇒\frac{R}{100}=0.5$
$\therefore R=50$%
Hence, the correct answer is $50$%.

Correct Answer: Non-profit MFIs

Solution : The answer is Non-profit MFIs.

In general, microfinance institutions in India fall into three categories: mutual benefit, for-profit, and not-for-profit. Only non-banking financial businesses, or NBFC-MFIs, which are for-profit microfinance institutions, are subject to Reserve Bank of India (RBI) regulation.

Correct Answer: Believable

Solution : The correct choice is the fourth option.

The adjective "incredible" means something unbelievable, extraordinary, or difficult to believe due to being extraordinary or improbable.

Its antonym is the adjective "believable". It refers to something believable, which means it can be accepted as true or credible.

The meanings of the other options are as follows:

The adjective strained describes something that is stretched or forced, often indicating difficulty or tension.

The adjective far-fetched describes something unlikely and often requires a creative leap of the mind.

The adjective implausible describes something that is not likely to happen or be true; it doesn't seem reasonable or probable.

Therefore, the correct antonym is believable.

Correct Answer: France

Solution : The correct option is France.

The Summer Olympic Games are a major international sporting event held every four years, with sports competitions involving athletes around the world. It will be held in 2024 in the capital city of Paris, France. The Summer Olympics feature a wide range of sports, including athletics, swimming, gymnastics and various team sports.

Correct Answer: Goa to Mumbai

Solution : The correct answer is Goa to Mumbai.

The Konkan, also known as Aparanta, is a coastal plain in western India that spans over the Western Ghats to the east and the Arabian Sea to the west. The Konkan Coast is the region that includes Goa's and Maharashtra's coastlines.

Correct Answer: Bushfire have created havoc

Solution : The first option is correct.

In this part of the sentence, bushfire is a singular noun, but have is a plural verb, so they don't agree in number.

According to the subject-verb agreement, if the subject is plural, the verb must be plural. Conversely, if the subject is singular, the verb must be singular.

Therefore, the correct sentence will be: Bushfires have created havoc and exacerbated the conditions of animals in the forest.

Correct Answer: Nine times

Solution : The correct answer is Nine times.

Any conducting coil's ability to resist changes in current flow is known as self-inductance. A solenoid's self-inductance increases by nine times when the number of turns in the coil triples without any change in the coil's length. The coil's self-inductance is directly proportional to the square of the number of turns. The formula for the self-inductance (L) of a coil is L= μ⋅N2⋅A​/ l.

Correct Answer: The Constitution does not provide for their direct enforcement.

Solution : The correct option is The Constitution does not provide for their direct enforcement.

Fundamental duties in the Indian Constitution are not directly enforceable by law. While they are mentioned as a part of the Constitution, there are no legal provisions for their enforcement through the courts. They serve more as moral and ethical obligations for citizens.

Correct Answer: 273

Solution : Given:
11 : 133 :: 16 : ? :: 22 : 507

Square the first number and then add 1 and the first number to the resultant, to get the second number –
Like, 11 : 133→(11)² = 121; 11 + 1 = 12; 121 + 12 = 133
And, 22 : 507→(22)² = 484; 22 + 1 = 23; 484 + 23 = 507
Similarly, follow the same pattern for 16 : ?→(16)² = 256; 16 + 1 = 17; 256 + 17 = 273

So, the missing number is 273. Hence, the third option is correct.

Correct Answer: 15 years

Solution :

Given:
Adam's age = 20 years
Also, Adam's age = 4 × Mary's age
⇒ Mary's age = Adam's age ÷ 4
⇒ Mary's age = 20 ÷ 4 = 5 years.

Let us assume that after A years, Adam's age is twice the Mary's age;
Adam's age after A years = (20 + A) years, and Mary's age after A years = (5 + A) years.
Also, after A years, Adam’s age = 2 × Mary’s age
⇒ (20 + A) = 2(5 + A)
⇒ 20 + A = 10 + 2A
⇒ 20 – 10 = 2A – A
⇒ A = 10 years
Therefore, Mary's age after 10 years will be 15 years, and Adam’s age after 10 years will be 30 years.

So, Mary's age after 10 years will be 15 years. Hence, the second option is correct.