Correct Answer: OJ19

Solution : Given:
FK19 is related to GM22 and QB13 is related to RD16.

Here, add 1 and 2 to the place values of the letters and add 3 to the numbers of the given terms to get its related term.
Like, FK19 is related to GM22→F

Correct Answer: 21 years

Solution : The average age of Rustam and Preetam = 30 years
Use the formula to find the average, Average = $\frac{\text{Sum of the ages}}{{\text{Total number of Person}}}$
The sum of their ages = Average × Total number of Person = 2 × 30 = 60

Correct Answer: INR 3,000

Solution : Given, Discount = 12.5% and Selling price = 2625
Selling price = $\frac{100-\text{Discount}\%}{100}×\text{Marked price}$
⇒ $2625 = \frac{100-12.5}{100}×\text{Marked price}$
$\therefore$ Marked price $=\frac{100×2625}{87.5}=3000$
Hence, the correct answer is INR 3,000.

Correct Answer: Cannot be determined

Solution : The family tree is as follows –



Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
The above family tree shows two possibilities where in one, the lady can be the mother of Vishal, and in

Correct Answer: 0°

Solution : Given, $\cos ^2 \theta-2+\cos \theta=0$
⇒ $\cos ^2 \theta+2\cos \theta-\cos\theta-2=0$
⇒ $\cos \theta(\cos \theta+2)-1(\cos \theta+2)=0$
⇒ $(\cos \theta+2)(cos \theta-1)=0$
⇒ $\cos \theta=-2$ or $\cos \theta=1$
Since the range of $\cos\theta$ is –1 < $\cos \theta$ < 1
Hence, $\cos\theta$ cannot be –2.
So, $\cos \theta=1⇒\theta=

Correct Answer: Frog

Solution : Given:
Nymph is related to Cockroach.

Like, Nymph is the early stage of the lifecycle of a cockroach.
Similarly, Tadpole is the early stage of the lifecycle of a Frog.

Hence, the fourth option is correct.

Correct Answer: 10.5%

Solution : Let the cost price of goods be Rs.100
⇒ Marked price of goods $= 100 × \frac{130}{100} = \mathrm{Rs.}\ 130$
⇒ Selling price of goods $= 130 × \frac{100 - 15}{100} = \mathrm{Rs.}\ 110.5$
⇒ Profit % $= \frac{110.5 - 100}{100}×100 = 10.5\%$
Hence, the

Correct Answer: 40 kg

Solution : The total weight of 64 students with an average weight of 48 kg = 64 × 48 = 3072 kg
The total weight of 32 students with an average weight of 24 kg = 32 × 24 = 768 kg
The total weight of

Correct Answer: 270

Solution : Let's check the options –
First option: 306→(17)² + 17 = 289 + 17 = 306
Second option: 270→No such relation can be deduced. 
Third option: 132→(11)² + 11 = 121 + 11 = 132
Fourth option: 240→(15)² + 15 = 225

Correct Answer: Virender Sehwag

Solution : The correct option is Virender Sehwag.

Virender Sehwag became the first Indian cricketer to record a triple century in a test match, the game's format, on March 29, 2004. The other Indian cricketer to achieve this feat is Karun Nair.