Correct Answer: 0

Solution : Given: $a+\frac{1}{a}=1$
⇒ $\frac{a^2+1}{a}=1$
⇒ $a^2+1=a$
⇒ $a^2-a+1=0$
Now, $\frac{a^2–a+1}{a^2+a+1}=\frac{0}{a^2+a+1}=0$
Hence, the correct answer is 0.

Correct Answer:

Solution : According to the given figures –
1. The figure with the arrow rotates by 90° in the clockwise direction.
2. The letters are in sequential order and shift their position following the below two patterns –
a. Top left→Top right→Bottom right→Bottom left→Top left
b. Bottom right→Bottom

Correct Answer: 12

Solution : Given: P and Q can complete a project in 15 days and 10 days, respectively.
LCM of 15 and 10 is 30.
Let the work be 30 units.
Efficiency of P = $\frac{30}{15}=2$
Efficiency of Q = $\frac{30}{10}=3$
Two days of work of P and

Correct Answer: 500

Solution : Given: A man spends 15% of his income and his expenditure is Rs. 75.
Here, 15% is equivalent to Rs. 75.
So, 100% is equivalent to $\frac{75×100}{15}$ = Rs. 500
$\therefore$ His income is Rs. 500.
Hence, the correct answer is 500.

Correct Answer: Elaborate arrangements are being made for the party.

Solution : The correct choice is the third option.

Passive voice is the voice in which the object experiences an action rather than the person who acts. Hence, the object in the active sentence becomes the subject in the

Correct Answer: 150%

Solution : Let the third number be 100$x$.
Then, the first number = 50% less than 100$x$
= 50$x$
The second number = 80% less than 100$x$
= 20$x$
So, the required percentage change = $\frac{\text{ first number – second number}}{\text{second number}} × 100$%
= $\frac{50x-20x}{20x}$ ×

Correct Answer: 4

Solution : Given:
1, 5, 2, 6, 3, 7, ?

The series is a combination of two series (1, 2, 3, ...) and (5, 6, 7, ...)
The common difference between the first and second series is 1.
1, 5, 2, 6, 3, 7,

Correct Answer: Blood capillaries

Solution : The correct option is blood capillaries.

Among the structures present in mammalian skin, blood capillaries play a significant role in helping to regulate body temperature. Blood capillaries in mammalian skin help regulate body temperature by constricting to conserve heat in cold conditions and dilating

Correct Answer: 154

Solution : The volume of a solid cylinder = 2002 cm³
Height = 13 cm
The volume of the cylinder = Bh
Where B = Area of the base and h = height
According to the question,
2002 = B × 13
$\therefore$ B = $\frac{2002}{13}=154

Correct Answer: to pay heavily

Solution : The second option is the correct choice.

In this context, heavy is an adjective, and it should be replaced with the adverb heavily to modify the verb pay correctly. Adverbs are used to describe how an action is performed, and in this case,