the author's answer is correct. i did not expect to wake up and do math question from a webnovel today.
the working is below.
the key interpretation is that A does not srop to wait for B.
"When they started swimming, A was ahead of B by 400 meters... Therefore, the final result is that the width of the river is 2400 meters."
Webnovel
the author's answer is correct. i did not expect to wake up and do math question from a webnovel today. the working is below. the key interpretation is that A does not srop to wait for B.
"When they started swimming, A was ahead of B by 400 meters... Therefore, the final result is that the width of the river is 2400 meters."
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