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Maths Puzzle
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A girl, a boy, and a dog start walking down a road.
They start at the same time, from the same point, in the same direction.
The boy walks at 5 km/h, the girl at 6 km/h.
The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
Q. How far does the dog travel in 1 hour?
Read Solution (Total 3)
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- There seems to be problem in language in last line. If it is asked that how much distance is travelled by the Dog then it is 10 Km as at the instance they start running Dog is ahead of both boy and girl and continues running with speed 10 Km/h
so dist = 10 Km - 14 years agoHelpfull: Yes(3) No(1)
- The dog 10 km in 1 hour.
- 14 years agoHelpfull: Yes(1) No(2)
- hw 10 km..?
- 9 years agoHelpfull: Yes(1) No(0)
A website Other Question
Five friends have their gardens next to one another, where they grow three kinds of crops: fruits (apple, pear, nut, cherry), vegetables (carrot, parsley, gourd, onion) and flowers (aster, rose, tulip, lily).
1. They grow 12 different varieties.
2. Everybody grows exactly 4 different varieties
3. Each variety is at least in one garden.
4. Only one variety is in 4 gardens.
5. Only in one garden are all 3 kinds of crops.
6. Only in one garden are all 4 varieties of one kind of crops.
7. Pear is only in the two border gardens.
8. Paul's garden is in the middle with no lily.
9. Aster grower doesn't grow vegetables.
10. Rose grower doesn't grow parsley.
11. Nuts grower has also gourd and parsley.
12. In the first garden are apples and cherries.
13. Only in two gardens are cherries.
14. Sam has onions and cherries.
15. Luke grows exactly two kinds of fruit.
16. Tulip is only in two gardens.
17. Apple is in a single garden.
18. Only in one garden next to the Zick's is parsley.
19. Sam's garden is not on the border.
20. Hank grows neither vegetables nor asters.
21. Paul has exactly three kinds of vegetable.
Who has which garden and what is grown where?
Q. What is the next term in this sequence?
1, 11, 21, 1211, 111221,... ?