Correct Answer: 168

Solution : Given:
The average of 8 numbers = 21
If the average of x numbers is y and each number is multiplied by z, then the new average will be (y × z).
According to the question,
Required new average = Old average × 8
$\therefore$

Correct Answer: confiscate

Solution : The third option is the correct answer.

The word confiscate is the most appropriate choice in this context because it means explicitly to seize or take possession of something as a penalty or punishment, typically by an authority or a person in charge.

The other

Correct Answer: 7

Solution : Series = 1 + 3 + 3² + ...+ 3ⁿ
It is a geometric series whose common ratio is 3.
We know,
a + ar + ar²+.......+ar^n–1 = $\frac{ar^n–1}{r-1}$, where r >1
Here, a = 1, r = 3
Using

Correct Answer: 16.5

Solution : 3126 ÷ 4 of 521 + 5 × 3
= 3126 ÷ 2084 + 5 × 3
= 1.5 + 5 × 3
= 1.5 + 15
= 16.5
​​​​​​​Hence, the correct answer is 16.5.

Correct Answer: Rs. 2,051.20

Solution : Sum, P = Rs. 32,000
Rate, R = 10%
Term, $n$ = 4 years
When compounded annually, Compound Interest after n years = $P[(1+\frac{R}{100})^{n}–1]$
Compound Interest after 4 years = $32000[(1+\frac{10}{100})^{4}–1]$
= Rs.14,851.20
Simple Interest after n years = $\frac{PnR}{100}$
Simple Interest after 4

Correct Answer: to plan our course careful

Solution : The correct choice is the fourth option.

The error in this sentence lies in the word "careful". The correct form should be "carefully".

The adverb "carefully" is needed to modify the verb "plan". When describing how someone plans their course, the

Correct Answer: the course of action began and it could not be blocked

Solution : The correct choice is the third option.

The phrase, the die was cast is an idiom that means a decision or course of action has been irrevocably taken and cannot be changed.

Therefore, the correct

Correct Answer: 10

Solution : The given figure can be labelled as shown below –

Now, in the above figure, there are 10 triangles. They are ABC, CEF, DEG, GFH, GHI, JHK, HLM, GLN, JLO, KOP.

Hence, the first option is correct.

Correct Answer: 345 seconds

Solution : Given: Distance = 1725 m
Relative speed between raju and sohan = 90 – 72 = 18 km/hr
= $18\times \frac{5}{18}$
= 5 m/s
$\therefore$ Time = $\frac{\text{Distance}}{\text{Speed}}=\frac{1725}{5}=345$ seconds
Hence, the correct answer is 345 seconds.

Correct Answer: 55 km/h

Solution : Given:
Distance between town A and town B = 600 km
Average speed of Joshua = 65 km/h
Time taken = 5 hours

So, Joshua covered a distance of = Speed × Time
= 65 × 5
= 325 km
Distance to be covered