Correct Answer: same book as

Solution : The correct option is the fourth option.

Explanation: The word "like" is not the appropriate preposition to use in this context because "like" is used to show similarity. Instead, when making comparisons, it is more grammatically accurate to use "as" in

Correct Answer: 27

Solution : Given:
8 : 32 :: ? : 108

Divide the second number by 4 to obtain the first number.
Like, 8 : 32→32 ÷ 4 = 8
Similarly, follow the same pattern for 108 : ?→108 ÷ 4 = 27

So, 27 is related to

Correct Answer: $750 \pi$

Solution : Given: Outer radius $(R)$ = 4 cm
Thickness = 0.5 cm
Internal radius $(r)$ = 4 – 0.5 = 3.5 cm
Volume of material = $\pi(R^2 - r^2)h$
= $\pi \times (4^2 - 3.5^2)\times 200$
= $\pi \times 3.75\times 200$
= $750\pi$ cm$^3$
Hence,

Correct Answer:

Solution : As per the mirror image properties, closer things appear close to the mirror in the reflection.
Here, according to the information provided, the mirror is placed on the right side of the figure (on line AB). So, the left side of the reflected image will appear

Correct Answer: waiting at the airport

Solution : The correct choice is the first option.

Explanation: The error lies in the incomplete expression of the continuous action. The present participle "waiting" should be accompanied by a helping verb to form the correct present perfect continuous tense. The sentence should

Correct Answer: degeneration

Solution : The correct answer is the third option.

The word "degeneration" is a suitable synonym for "degradation" in this context because both terms convey a similar idea of a decline or deterioration in the quality or condition of something. In the sentence, "degradation" is used to

Correct Answer: 2400

Solution : Let total work to be done = LCM (8, 10, 12) = 120 units
A can do the work in 8 days.
⇒ A's efficiency = $\frac{120}{8} = 15$ units/day
Similarly, B's efficiency = $\frac{120}{10} = 12$ units/day
and C's efficiency = $\frac{120}{12} = 10$

Correct Answer: RPNL

Solution : Given:
ACEG : ZXVT :: IKMO : ?

The pattern followed here is each letter is coded as its opposite letter –
Like, ACEG = A→Z; C→X; E→V; G→T
Thus, ACEG is coded as ZXVT.
Similarly, follow the same pattern for IKMO –
I→R; K→P;

Correct Answer: Small pox

Solution : The correct option is - small pox.

When smallpox was declared eradicated by the WHO in 1980, it became the first infectious illness to achieve this status. This highly contagious sickness is caused by the variola virus. The smallpox vaccine, created by Edward Jenner

Correct Answer: 11

Solution : The figure can be labeled as shown below –

There are 11 triangles in the above figure. They are ABC, AGB, AGC, DBF, DFG, DBG, GEH, HEC, GEC, ADG, AEG.

Hence, the second option is correct.