ESIC Nursing Officer 2016 (shift-1)
Non Nursing Subjects
Hard
Simplify 145% of 700.05+22.99 × 15.05:
Appeared in: ESIC Nursing Officer 2016 (shift-1)
Explanation
- The problem requires simplifying a mathematical expression involving percentage, multiplication, and addition.
- According to the BODMAS/PEMDAS rule, operations like percentage (a form of multiplication) and multiplication are performed before addition.
- First, calculate 145% of 700.05, which is equivalent to
1.45 × 700.05 = 1015.0725. - Next, calculate the product of 22.99 and 15.05, which is
22.99 × 15.05 = 345.9995. - Finally, add the two results together:
1015.0725 + 345.9995 = 1361.072.
Why Other Options Were Wrong
- Option B: This result is incorrect. It may arise from a miscalculation in either the multiplication or the final addition step.
- Option C: This is an incorrect sum. It likely stems from an error during the multiplication of decimal numbers or a rounding error before the final addition.
- Option D: This value is significantly lower than the correct answer, suggesting a substantial error in calculation, possibly in the multiplication or addition stages.
Related Visual
- Visual 1: Flowchart - A flowchart illustrating the BODMAS/PEMDAS order of operations (Brackets, Orders, Division/Multiplication, Addition/Subtraction) to show the correct sequence for solving the expression.
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Simplification of mathematical expressions using the BODMAS/PEMDAS rule as background academic context rather than a clinical decision trigger.
- While this is a mathematics question from the aptitude section, strong numerical literacy is crucial in nursing for tasks like medication dosage calculation, IV drip rate monitoring, and interpreting lab results.
- For example, a nurse must accurately calculate a drug dose based on a percentage concentration or a patient's weight, where a simple math error could have serious patient safety consequences.
- What if? If the expression involved subtraction instead of addition (e.g.,
145% of 700.05 - 22.99 × 15.05), the final step would be subtraction, yielding a completely different answer:1015.0725 - 345.9995 = 669.073.
How to Approach the Question
- First, read the expression carefully:
145% of 700.05 + 22.99 × 15.05. - Identify the mathematical operations involved: percentage (which is a form of multiplication), addition, and multiplication.
- Recall the order of operations, commonly remembered by the acronym BODMAS or PEMDAS. This rule states that multiplication and division should be performed before addition and subtraction.
- Break the problem into parts based on this rule. First, solve
145% of 700.05. Second, solve22.99 × 15.05. - Perform the calculations for each part accurately.
1.45 × 700.05 = 1015.0725and22.99 × 15.05 = 345.9995. - Finally, perform the addition:
1015.0725 + 345.9995 = 1361.072. Match this result with the given options.
Concept Tested & Keywords
- Concept Tested: Simplification of mathematical expressions using the BODMAS/PEMDAS rule.
- Stem keywords: Simplify, 145%, 700.05, 22.99, 15.05
- Lead-in keywords: Simplify
- Negative lead-in flag: false
Question ID
QoGUazJ_e9-2wJHpP8jSyf
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