Ravi had 25 marbles. He gave 10 marbles to his brother. What percent of the marbles did he give his brother.
Answers
Answer:
2.5%
Step-by-step explanation:
10% of 25
= 10/100*25
= 1/10*25
= 5/2%
= 2.5%
Answer:
Ravi had 25 marbles. He gave 10 marbles to his brother. What percent of the marbles did he give to his brother?
The all new Dominar 250: welcome to the world of touring.
I always wondered about questions like this in school. My answers would often rile my teachers a bit, since I liked to think either outside the box or often on the very edges of the box.
Here Ravi gave his brother 10 of his 25 marbles. That is 2/5 or 40% of all of the marbles he possessed at the time of the gift.
However, ignoring the number of marbles he originally had, which may be viewed as superfluous to the question, it then asks: “He gave 10 marbles to his brother. What percent of the marbles did he give to his brother?”
As to that question, what percent of the 10 marbles he gave to his brother, the answer is 100%. It may seem obvious, but that is my point. The question must be posed in a manner that excludes answers of this type.
Such a question could be: “What percent of the marbles he originally had did he give to his brother?”
This might do it, or not. Someone thinking outside the box might suggest that Ravi at one time had more marbles, and thus the question is not capable of being answered, so I have to refine the question again.
“What percent of his 25 marbles are the 10 marbles he gave his brother?” This question probably passes muster, but its 6AM and I’m too tired to think it out further. Good night.
Billy sold 66 and 2/3% of his marbles and gave 0.25 of the remainder to his brother. He kept 255 marbles. How many marbles did he have at first?
John had 12 bags of 19 marbles. He lost 11 marbles. How many marbles does he have now?
Dhruv and Hemant had 60 marbles altogether. After Hemant lost 1/6 of his marbleS to Dhruv, Dhruv had twice as many marbles. How many marbles did Dhruv have at first?
John gives 0.25 of his marbles to Tom and 0.35 marbles to his brother. 60 marbles were left in John's pocket. How many marbles did John have at first?
The mean of 20 numbers is 25. If 4 is subtracted from every number, what will be the new mean?
The Answer is 40%
Solution:
Ravi had 25 marbles, so the total number of marbles is 25.
Ravi’s brother has 10 marbles.
The total number of marbles (25) is equivalent to 100%.
So therefore:
25 = 100
10 = ?
10*100/25 = 40
Therefore, Ravi gave 40% of his 25 marbles to his brother.
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A very easy way to do this sum in your head is to convert the original amount to 100 by multiplying it by 4
25X4 =100
and then mulhtiply the gift amount by 4
10X4 =40.
Compare 40 to 100 and you can clearly “see”that it is 40 100ths or 40%
therefore 10 is 40% of 25.
it's 40%
(10/25)*100=40
40