Explanation

- I: Ibrahim looks after half of the trees in the orchard.  

- II: Ibrahim takes care of 300 trees.

If we know Ibrahim looks after half the trees (I) and that half equals 300 trees (II), then total trees = 300 × 2 = 600.

So:

- I alone is not enough (we don’t know total number).

- II alone is not enough (no info on total or fraction).

- Both I and II together are enough to find the total.

Explanation

Since P and Q are M’s parents, and Q is N’s mother, P must be the other parent of M.

So, P is M’s father (assuming traditional gender roles in this context).

Explanation

The pattern shows the number of infected people is doubling each day:

- Day 1: 8  

- Day 2: 16 (8 × 2)  

- Day 3: 32 (16 × 2)  

So, Day 4 will be: 32 × 2 = 64 people

Explanation

Poor design like an unplanned workspace layout can cause accidents by creating hazards, blocking exits, or causing clutter.

The others are hazards but not directly related to poor design.

Explanation

- Subject: The teacher (singular)  

- Verb: must agree in number with the subject.  

"Give" is the base form (used with plural subjects or with "I/you/we/they").  

"Gives" is the singular present tense form (used with singular subjects like "he/she/it" or "the teacher").  

So,  

- The teacher gives (correct)

Explanation

The keys were found in the drawer where you left them last week. 

We use "in" when something is located inside an enclosed space, like a drawer.

Explanation

esistance R of a conductor is given by:

R = ρ (L / A)  

Where:  

- ρ = resistivity  

- L = length  

- A = cross-sectional area

If length (L) is made 4 times, and area and material stay the same, then:

R becomes 4 × original resistance

Explanation

According to Lenz's Law, the induced current always flows in such a direction that it opposes the change causing it.

- As the loop moves toward the magnet, the magnetic flux through it increases.

- The induced current creates a magnetic field that opposes the magnet’s field, resisting the motion.

Explanation

- Terminal voltage (V) of a cell is given by:  

  V = EMF − Ir,  

  where I = current, r = internal resistance.

- When no current flows (I = 0),  

  V = EMF (since Ir = 0).

Explanation

- Mechanical waves (like sound) need a medium (solid, liquid, or gas) to propagate.

- In outer space, which is a vacuum, there are no particles to transmit vibrations.