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Question : Directions:After interchanging the given two numbers (not digits) what will be the values of expression (I) and (II) respectively?
6 and 4
l. 10 × 6 – 30 ÷ 4 + 20
II. 8 – 4 × 5 + 6 ÷ 2
Option 1: 12 and –6
Option 2: 20 and 55
Option 3: 55 and –20
Option 4: 10 and –6
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Team Careers360 25th Jan, 2024
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Answer (1)
Team Careers360 26th Jan, 2024
Correct Answer: 55 and –20
Solution : Given:
l. 10 × 6 – 30 ÷ 4 + 20
II. 8 – 4 × 5 + 6 ÷ 2
Let's solveeach equation after interchanging the numbers according to the instructions.
On interchanging the numbers 6 and 4in the first equation, we get–
=10 × 4 – 30 ÷ 6 + 20
=10 × 4 – 5 + 20
=40 – 5 + 20
= 55
On interchanging the numbers 6 and 4 in the second equation, we get–
= 8 – 6 × 5 + 4 ÷ 2
=8 – 6 × 5 + 2
=8 – 30 + 2
=–20
Therefore, after solving the given equations the required answer is 55 and –20. Hence, the third option is correct.
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