Do 21/5 x 3/5 and you should get 63/25. Divide 63 by 25 and you should get 2 and 13/25.
15 36/100 / 6 is 2.56 so i think the tortoise walks 2.56 meters per minute
Answer: If four numbers are proportional, a : b = c : d, then the product of the extremes is equal to the product of the means. ad = bc
The given number above, 0.002353, may be rounded to only two significant figures by adding 1 to the 3 which is in the fourth place of the decimal position. This becomes, 0.0024. Addition of 1 was done because the number that follows 3 in the original number is 5.
