Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following signs. If – stands for division, + stands for multiplication, ÷ stands for subtraction, and × stands for addition, which one of the following equations is correct?
Option 1: 20 – 4 + 6 ÷ 9 × 4 = 25
Option 2: 20 + 6 – 4 × 9 ÷ 6 = 32
Option 3: 20 ÷ 9 × 9 – 4 + 6 = 33
Option 4: 20 × 4 – 6 ÷ 4 + 9 = 20
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Correct Answer: 20 – 4 + 6 ÷ 9 × 4 = 25
Solution : Given: – stands for division, + stands for multiplication, ÷ stands for subtraction, and × stands for addition.
Replace the mathematical signs in the equations and solve the equations one by one.
Let's check the given options – First option: 20 – 4 + 6 ÷ 9 × 4 = 25 ⇒ 20 ÷ 4 × 6 – 9 + 4 = 25 Solving L.H.S. of the equation – = 5 × 6 – 9 + 4 = 30 – 9 + 4 = 34 – 9 = 25 = R.H.S. Second option: 20 + 6 – 4 × 9 ÷ 6 = 32 ⇒ 20 × 6 ÷ 4 + 9 – 6 = 32 Solving L.H.S. of the equation – = 20 × 1.5 + 9 – 6 = 30 + 9 – 6 = 39 – 6 = 33 ≠ 32 Third option: 20 ÷ 9 × 9 – 4 + 6 = 33 ⇒ 20 – 9 + 9 ÷ 4 × 6 = 33 Solving L.H.S. of the equation – = 20 – 9 + 2.25 × 6 = 20 – 9 + 13.5 = 33.5 – 9 = 24.5 ≠ 33 Fourth option: 20 × 4 – 6 ÷ 4 + 9 = 20 ⇒ 20 + 4 ÷ 6 – 4 × 9 = 20 Solving L.H.S. of the equation – = 20 + 0.67 – 4 × 9 = 20 + 0.67 – 36 = 20.67 – 36 = –15.33 ≠ 20
So, only the first option satisfies the given condition. Hence, the first option is correct.
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Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following signs. If – stands for division, + stands for multiplication, ÷ stands for
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
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 division, '×' stands for addition,
Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following signs. If × means addition, – means division, ÷ means subtraction, and
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