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English and Logical Reasoning Prep Guide
Exam
English and Logical Reasoning Prep Guide
Subject
Logical Reasoning
Chapter
Mathematical Operations

English and Logical Reasoning Prep Guide · Logical Reasoning · Mathematical Operations

After interchanging the given two numbers and two signs what will...

After interchanging the given two numbers and two signs what will be the values of equation (I) and (II) respectively? (\times) and +, + 3 and 9 I. (7 \times 9-8 \div 2+3) II. (4 \times 9-3+8 \div 2)

Options

  1. A0,1
  2. B−26,−29-26,-29
  3. C6,0
  4. D12,13

Correct answer

B. −26,−29-26,-29

Step-by-step solution

According to the question, after interchanging the given two signs and two numbers i.e : - (\times) and + - Two numbers 3 and 9 So, (I. 7+3−8÷2‾×9⇒7+3−4×9‾⇒7+3−36‾⇒10−36‾⇒−26\begin{aligned} & \text {I. }7+3-\underline{8 \div 2} \times 9 \\ & \Rightarrow 7+3-\underline{4 \times 9} \\ & \Rightarrow \underline{7+3-36} \\ & \Rightarrow \underline{10-36} \\ & \Rightarrow-26 \end{aligned}) II. (4+3-9 \times \underline{8 \div 2}) (\Rightarrow 4+3-\underline{9 \times 4}) (\Rightarrow \underline{4+3}-36) (\Rightarrow \underline{7-36}) (\Rightarrow-29) Here, values of equation (I) and (II) are (-26) and (-29) respectively. Hence, "Option - (2)" is the correct answer.
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