Explanation

The pattern appears to be:

AZ (A=1, Z=26)

BY (B=2, Y=25)

CX (C=3, X=24)

Following the pattern, the next set would be:

D (4) and W (23)

So, the next set of alphabets in the series would be DW.

Explanation

Calorie is a unit of energy, not temperature.

The correct SI unit for temperature is Kelvin.

Explanation

A volunteer is a person who freely offers to take part in an enterprise or undertake a task, often without payment.

A volunteer, by definition, works without this financial incentive.

Explanation

Punish means غلط کاموں کے لئے سزا دینا

Discipline means اصلاحی اقدامات کے ذریعے قواعد کو نافذ کرنا

Explanation

Addition means اضافہ

Increase means اضافہ

Explanation

Exterior means بیرونی

Outside means باہر

Explanation

Height means اونچائی

Peak means چوٹی

Explanation

Let the number be x, so (3/4) × x = 15 ⟹ x = 15 × 4 / 3 = 20

Therefore, 15 is 3/4 of 20.

Explanation

Let original price be x, then x + 12% of x = 950

⟹ x × 1.12 = 950 ⟹ x = 950 ÷ 1.12 = 875

So, the original price was Rs. 875.

Explanation

Let's analyze each pair:

1. 64 - 8: 64 = 8², and 8 = 8 (matches)

2. 36 - 6: 36 = 6², and 6 = 6 (matches)

3. 49 - 7: 49 = 7², and 7 = 7 (matches)

4. 80 - 9: 80 ≠ 9² (doesn't match, as 9² = 81)

The odd one out is 80 - 9 because the other pairs consist of a number and its square root.