Correct Answer: 154

Solution : Given:
+ means –, – means ×, × means ÷, ÷ means +
137 ÷ 56 × 7 – 6 + 31 = ?

After interchanging the given mathematical signs, we get –
137 + 56 ÷ 7 × 6 – 31
137 + 8

Correct Answer: Comparsion

Solution : The third option is the correct choice.

The incorrectly spelled word is Comparsion. The correct spelling is comparison. The error lies in the placement of the letters a and I. The correct spelling follows the sequence "compar" followed by ison, whereas the incorrect

Correct Answer: 16

Solution : The greatest number that divides 261, 853, and 1221, leaving a remainder of 5 in each case, is the greatest common divisor (GCD) of (261 – 5), (853 – 5), and (1221 – 5). 
So, we need to find the GCD of 256, 848, and

Correct Answer: $2\operatorname{cosec A}$

Solution : $\frac{\sin A}{1+\cos A}+\frac{1+\cos A}{\sin A}$
$=\frac{\sin^2 A + (1 + \cos A)^2}{\sin A (1 + \cos A)}$
$=\frac{\sin^2 A +1 + 2\cos A + \cos^2 A}{\sin A (1 + \cos A)}$
$=\frac{2 + 2\cos A}{\sin A (1 + \cos A)}$ [$\because \sin^2 A +

Correct Answer: 880

Solution : The volume of a cylinder, $V = \pi r^2 h$, where $r$ is the radius and $h$ is the height.
⇒ $h = \frac{V}{\pi r^2}$
Given that $V = 6160 \, \text{cm}^3$, $r = 14 \, \text{cm}$, and $\pi = \frac{22}{7}$
$\therefore h = \frac{6160}{\frac{22}{7}

Correct Answer: Governor

Solution : The correct answer is Governor.

According to this article, the President or Governor shall not be answerable to any court for the exercise and performance of the powers and duties of his office or for any act done or supposed to be done by

Correct Answer: 20%

Solution : Here SP is the selling price and CP is the cost price.
CP for Arun = Rs. 120
Profit = 25%
SP of apple = $\frac{125}{100}×120$ = Rs. 150
Again, SP by Divya = Rs. 198
Including profit = 10%
CP for Divya = $\frac{100}{110}×198$

Correct Answer: 144

Solution : Given:
115, 130, 122, 137, 129, ?

Add 15 and subtract 8 alternately from the previous term to obtain the missing term.
115 + 15 = 130; 130 – 8 = 122; 122 + 15 = 137; 137 – 8 = 129; 129 + 15

Correct Answer: 2.1 cm

Solution : Let $r$ be the radius of a circle.
The perimeter of the circle = 13.2 cm
$2\pi r = 13.2$
$⇒2 × \frac{22}{7} × r = 13.2$
$\therefore r = \frac{13.2 × 7}{2 × 22}= 2.1$ cm
Hence, the correct answer is 2.1 cm.

Correct Answer: Salary

Solution : All other given words (Insurance, Provident Fund, Shares) except for Salary are the types of investments made.
But salary is the source of income.

Hence, the third option is correct.