A military base has 120 soldiers. If 30% of them are on leave, how many soldiers

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Question: A military base has 120 soldiers. If 30% of them are on leave, how many soldiers are present? (2019)

Options:

Correct Answer: 80

Exam Year: 2019

Solution:

Soldiers on leave = 30% of 120 = 0.3 × 120 = 36. Present = 120 - 36 = 84.

A military base has 120 soldiers. If 30% of them are on leave, how many soldiers are present? (2019)

A military base has 120 soldiers. If 30% of them are on leave, how many soldiers are present? (2019)

Step 1: Start with the total number of soldiers, which is 120.
Step 2: Calculate 30% of 120 to find out how many soldiers are on leave. To do this, multiply 120 by 0.3 (which is the decimal form of 30%).
Step 3: Perform the multiplication: 0.3 × 120 = 36. This means 36 soldiers are on leave.
Step 4: To find out how many soldiers are present, subtract the number of soldiers on leave from the total number of soldiers: 120 - 36.
Step 5: Perform the subtraction: 120 - 36 = 84. So, there are 84 soldiers present.

Percentage Calculation – Understanding how to calculate a percentage of a total number.
Subtraction – Using subtraction to find the remaining quantity after a portion is removed.