Orkut Maths Puzzle Logical Reasoning Blood Relations

Q. How many times does a coin rotate in rolling completely about another coin, of the same size, without slipping?

Read Solution (Total 4)

Ans. one time only
Both the coints of the same size, therfore the coin will roll only one time about other coin.
12 years agoHelpfull: Yes(1) No(1)

2 times.

coin will rotate twice in rolling completely about another coin, of the same size, without slipping.
12 years agoHelpfull: Yes(0) No(3)
Ans. Once only
AS coin will cover distance equal to its circumference in one rotation..i.e.equal to another coin's circumference.
10 years agoHelpfull: Yes(0) No(0)
Ans. Once only
9 years agoHelpfull: Yes(0) No(0)

Orkut Other Question

Q. Arrange the ten digits 0 to 9 in three arithmetical sums, using three of the four operations of addition, subtraction, multiplication, and division, and using no signs except the ordinary ones implying those operations. Here is an example to make it quite clear:
3 + 4 = 7
9 - 8 = 1
5 X 6 = 30
But, the example is not correct, as the number 2 has not been used and the number 3 has been used twice. Can you come up with a valid solution? Q. My friend owns a horse-driven carriage. It was found that the fore wheels of the carriage make four more revolutions than the hind wheel in going 96 feet. However, it was also found that if the circumference of the fore wheel was 3/2 as great and of the hind wheel 4/3 as great, then the fore wheel would make only 2 revolutions more than hind wheel in going the same distance of 96 feet. Can you find the circumference of each wheel?