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Practice each question, then open the answer or worked solution.
How many of you have seen the sea? Where did you see it? Did you see it in a movie or for real? How deep do you think the sea could be? Find out.
Solution:-
I and many of my friends have seen the sea at Mangalore. I have also seen the see in a movie. I think the depth of the sea is more than 500 feet.
Do you know how to swim? Would you be scared of the high sea waves?
Solution:-
No, I don’t know how to swim. Yes, I am scared of the high sea waves.
Close your eyes and imagine the sea with waves rising high.
Solution:-
Yes, I can imagine the sea with waves rising high; it was amazing.
How high do you think the waves can go?
Solution:-
I think that the waves can go more than 45 meters.
These log boats do not go very far. If the wind is helpful, they travel about 4 km in one hour.
1. How long will they take to go a distance of 10 km?
Solution:-
The log boats take one hour to travel 4 km.
Then, the log boats take two hours to travel = 2 × 4 = 8 km
But in half an hour, the log boats will travel = 4/2 = 2km
∴ the total time they take to go a distance of 10 km = 2 and half an hour.
For 2 hours of boat travel = 8 km
For ½ an hour of boat travel = 2 km
= 8 + 2 = 10 km
2. Guess how far you can go in one hour if you walk fast.
Solution:-
I think I can cover 5 km to 6 km if I walk fast.