Question

1. There are two points on a highway A and B. They are 70 km apart. An auto starts from A and another auto starts from B simultaneously. If they travel in the same direction, they meet in 7 hours, but if they travel towards each other they meet in 1 hour. Find how fast the two autos are.

2. A diver rowing at the rate of 5 km/h in still water takes double the time in going 40 km upstream as in going 40 km downstream. Find the speed of the stream.

3. The larger of two supplementary angles exceeds thrice the smaller by 20 degrees. Find them.

Answer 1

Answer:

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Step-by-step explanation:

sorry I do not know

Answer 2

Answer:

first make me in brainlist

THANK you