16
Q:
A) 3:7 | B) 7:9 |
C) 5:4 | D) 8:3 |
Answer: D) 8:3
Explanation:
Explanation:
Let the man's rate upstream be x kmph and that downstream be y kmph.
Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.
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x x 8 | 4 | ![]() |
= (y x 4) |
5 |
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44 | x =4y |
5 |
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11 | x. |
5 |
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y + x | ![]() |
: | ![]() |
y - x | ![]() |
2 | 2 |
= | ![]() |
16x | x | 1 | ![]() |
: | ![]() |
6x | x | 1 | ![]() |
5 | 2 | 5 | 2 |
= | 8 | : | 3 |
5 | 5 |
= 8 : 3.