Match the temperatures: 14°C, -2°C, -4°C with times 02:00 am, 02:00 pm, 11:00 am.

Leh in Ladakh is very cold in winter. Temperatures are generally lowest in the early morning and highest in the afternoon.

$-4^\circ\text{C}$ (coldest)
$-2^\circ\text{C}$ (middle)
$14^\circ\text{C}$ (warmest)

$02:00 \text{ am}$ (coldest expected)
$11:00 \text{ am}$ (middle expected)
$02:00 \text{ pm}$ (warmest expected)

• $-4^\circ\text{C}$ is the coldest temperature, so it matches with $02:00 \text{ am}$.
• $14^\circ\text{C}$ is the warmest temperature, so it matches with $02:00 \text{ pm}$.
• $-2^\circ\text{C}$ is the middle temperature, so it matches with $11:00 \text{ am}$.

The matches are:
$14^\circ\text{C} \rightarrow 02:00 \text{ pm}$
$-2^\circ\text{C} \rightarrow 11:00 \text{ am}$
$-4^\circ\text{C} \rightarrow 02:00 \text{ am}$

21) Which of the following statements is true?

Temperature at A = $4^\circ\text{C}$
Temperature at B = $2^\circ\text{C}$

• a) A is cooler than B Since $4^\circ\text{C} > 2^\circ\text{C}$, A is warmer than B. This statement is false.

• b) B is cooler than A Since $2^\circ\text{C} < 4^\circ\text{C}$, B is cooler than A. This statement is true.

• c) There is a difference of $2^\circ\text{C}$ in the temperature The difference in temperature is $|4^\circ\text{C} - 2^\circ\text{C}| = 2^\circ\text{C}$. This statement is true.

• d) The temperature at A is $4^\circ\text{C}$ higher than that at B The temperature at A ($4^\circ\text{C}$) is $4^\circ\text{C} - 2^\circ\text{C} = 2^\circ\text{C}$ higher than that at B ($2^\circ\text{C}$). This statement is false.

Both statements b) and c) are factually true. However, in multiple-choice questions asking for "the" true statement, a direct comparison (like "cooler than") is often the intended answer when comparing two entities.

The true statement is: