Explanation

A reaction in which heat is absorbed is called an endothermic reaction.

These reactions lower the temperature of their surrounding area, thereby creating a cooling effect.

Explanation

Given y = 3:

Step 1: Calculate y³.

y³ = 3³ = 27

Step 2: Calculate y³ - y.

y³ - y = 27 - 3 = 24

Step 3: Calculate y³(y³ - y).

y³(y³ - y) = 27 × 24

= 648

Explanation

When a projectile moves upward, gravity acts downward.

This opposes the vertical motion, so the vertical component of velocity decreases until it becomes zero at the highest point.

Explanation

20 men can construct a building in 40 days.

Total work = 20 men × 40 days = 800 man-days.

Time = Total work / Number of men = 800 man-days / 10 men = 80 days.

Explanation

Step 1: Calculate 8% of $600

8% of $600 = (8/100) × $600

Step 2: Perform the calculation

= 0.08 × $600

= $48

Explanation

This is a conditional sentence (Type 2), which uses "were" with "I" in hypothetical situations.

Correct sentence: "If I were you, I would have told him the truth."

Explanation

Nobody has touched this box.

Passive voice: This box has never been touched by anybody.

"Nobody" becomes "by anybody" in passive.

Present perfect tense is maintained: has been touched.

Explanation

Cure means علاج

Medical treatment means طبی علاج

Explanation

Betting means شرط لگانا

Gambling means جوا