Explanation

Explanation

 He has eaten the pizza which he bought last night

 Correct. The sentence uses correct tense and article usage:

"has eaten" (present perfect) – recent action,

"which he bought last night" – past simple for a specific past time ("last night")

Explanation

"Although Sara drives to that market once every month, she is always lost in the market."

• "Although" is used to show contrast — even though she goes regularly, she still gets lost.

Explanation

 "I would die rather than ask a loan."

After "rather than", we use the base form of the verb (bare infinitive)

When it follows another verb in the same clause, especially after modal verbs like would.

So:

• "I would die rather than ask a loan" (Correct)

• "To ask"  (Infinitive form is incorrect here)

• "Have asked"  (Perfect form is not suitable)

Explanation

 "No teacher is willing to help me."

The verb "willing" is typically followed by "to + base form of the verb" (infinitive).

So the structure is:

willing + to help

Explanation

 Wikipedia – Correct

Contribution – Correct

Letitude – Incorrect (should be Latitude, which refers to the geographic coordinate)

Explanation

In passive voice, the object of the active sentence becomes the subject of the passive sentence.

The correct structure of the passive voice with the modal verb "might" in the perfect aspect is:

[Subject] + might have been + past participle + [by + agent].

So, "The insurance money might have been paid in instalments by him" is correctly structured

Explanation

√3, √4, √5 →  3+4=7 =5 Not valid

Explanation

Find HCF of 408, 468, and 516

• Prime factorizations:

  • 408 = $2^3\cdot 3<br>$

  • 468 = $2^2 cdot 3 cdot 13$
    

  • 516 = $2^2\cdot 3\cdot 43$

Common: 2^2.3 = 4.3=12

Explanation

Let angle = $x$
Complement = $90 - x$, Supplement = $180 - x$
Given:

$$6(90 - x) = 2(180 - x) - 12 \ 540 - 6x = 360 - 2x - 12 \ 540 - 6x = 348 - 2x \ 192 = 4x Rightarrow x = 48$$

$$540-6x=360-2x-12$$

$$540-6x=348-2x$$

$$192=4x\Rightarrow x=48$$