Starting at 1 on the number line, we will arrive at -8 after two jumps. Choose the appropriate expression for the situation.
A
1−3−8
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B
1−4−5
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C
−1−4−5
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D
1+3+8
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Solution
The correct option is B1−4−5 Starting from 1, let we make a hops to the left and arrive at -3. ⇒1−a=−3⇒a=1−(−3)⇒a=1+3⇒a=4
Similarly, starting from -3, let we make b hops to the left and arrive at -8. ⇒−3−b=−8⇒b=−3−(−8)⇒b=−3+8⇒b=5 ∴ Correct expression would be 1−a−b or 1−4−5.