Question : Direction: In the following question you have to identify the correct response from the given premises stated according to the following symbols.
If – stands for addition, ÷ stands for multiplication, × stands for subtraction, and + for division, then which one of the following equations is correct?
Option 1: 25 – 15 + 5 ÷ 4 × 16 = 21
Option 2: 25 + 11 – 4 ÷ 10 × 6 = 20
Option 3: 25 × 12 – 14 ÷ 4 + 6 = 16
Option 4: 25 – 12 + 14 ÷ 2 × 4 = 15
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Correct Answer: 25 – 15 + 5 ÷ 4 × 16 = 21
Solution : Let's check the options —
First option: 25 – 15 + 5 ÷ 4 × 16 = 21;
After replacing the symbols as per the code language, the equation becomes 25 + 15 ÷ 5 × 4 – 16 = 21. So, this relation holds true.
Second option: 25 + 11 – 4 ÷ 10 × 6 = 20;
After replacing the symbols as per the code language, the equation becomes 25 ÷ 11 × 4 – 10 + 6 = 50.09 which is not equal to 20. So, the relation does not hold true.
Third option: 25 × 12 – 14 ÷ 4 + 6 = 16;
After replacing the symbols as per the code language, the equation becomes 25 – 12 + 14 × 4 ÷ 6 = 22.33 which is not equal to 16. So, the relation does not hold true.
Fourth option: 25 – 12 + 14 ÷ 2 × 4 = 15;
After replacing the symbols as per the code language, the equation becomes 25 + 12 ÷ 14 × 2 – 4 = 22.71 which is not equal to 15. So, the relation does not hold true.
Hence, the first option is correct.
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