Explanation

• Length, mass, and time are fundamental physical quantities.
• They can be measured using standard units.
• SI units are the metre for length, the kilogram for mass, and the second for time.

Explanation

• Baby contains the letter B.
• Boy also contains the letter B.
• Children does not contain the letter B.

Explanation

• Tasting is a limited form of eating.
• Similarly, whispering is a limited form of speaking.
• Both pairs show a specific/lesser form of a broader action.

Explanation

• Seneema is different from the others because it is a place to watch movies,

While the rest are wild animals.

• Lion: A large wild cat that lives in groups called prides.
• Tiger: A large wild cat known for its orange coat and dark stripes.
• Panther: A large wild cat with a black or dark coat.

Explanation

• Acre does not belong to the list, because it is a unit of area,
• Whereas inch, foot, and yard are units of length.
• The other options exclusively measure one-dimensional distance.

Last updated by NA 26-08-2026

Explanation

• Frequency is the number of occurrences of a repeating event per unit of time.
• The SI unit of frequency is the hertz (Hz).
• 1 Hz = 1 cycle or vibration per second
• Unit: Hz = s⁻¹ (per second)
• Named after physicist Heinrich Hertz
• Used for waves, oscillations, sound, and electromagnetic radiation
• Derivations from other quantities: f = 1 / T
• Dimension T^−1

Explanation

Given

a : b = 2 : 3

b : c = 3 : 4

Step 1: Compare the common term(b)

Both ratios have (b=3), so they can be combined directly:

a : b : c = 2 : 3 : 4