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In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas?
Most Upvoted Answer
In Rohan birthday party,90% of his friends came and three friends did ...
Analysis:
To find the total number of friends Rohan has, we need to subtract the number of friends who did not come from the total number of friends who were invited. We are given that 90% of his friends came, so we can find the number of friends who did not come by subtracting 90% from 100%.
Calculation:
Let's assume the total number of friends Rohan has is 'x'.
Since 90% of his friends came, the number of friends who came is 90% of 'x', which is 0.9x.
We are also given that three friends did not come, so the number of friends who did not come is 3.
To find the total number of friends Rohan has, we can set up the following equation:
Number of friends who came + Number of friends who did not come = Total number of friends
0.9x + 3 = x
Now, we can solve this equation to find the value of 'x'.
0.9x - x = -3
-0.1x = -3
Dividing both sides by -0.1, we get:
x = -3 / -0.1
x = 30
Answer:
Therefore, the total number of friends Rohan has is 30.
To find the total number of friends Rohan has, we need to subtract the number of friends who did not come from the total number of friends who were invited. We are given that 90% of his friends came, so we can find the number of friends who did not come by subtracting 90% from 100%.
Calculation:
Let's assume the total number of friends Rohan has is 'x'.
Since 90% of his friends came, the number of friends who came is 90% of 'x', which is 0.9x.
We are also given that three friends did not come, so the number of friends who did not come is 3.
To find the total number of friends Rohan has, we can set up the following equation:
Number of friends who came + Number of friends who did not come = Total number of friends
0.9x + 3 = x
Now, we can solve this equation to find the value of 'x'.
0.9x - x = -3
-0.1x = -3
Dividing both sides by -0.1, we get:
x = -3 / -0.1
x = 30
Answer:
Therefore, the total number of friends Rohan has is 30.
Community Answer
In Rohan birthday party,90% of his friends came and three friends did ...
Let his total friends be x
x - 90% of x = 3
x - 90/100 × x = 3
x - 9x/10 = 3
10x - 9x/10 = 3
x/10 = 3
x = 10×3 = 30
therefore, total number of friends Rohan has is 30.
x - 90% of x = 3
x - 90/100 × x = 3
x - 9x/10 = 3
10x - 9x/10 = 3
x/10 = 3
x = 10×3 = 30
therefore, total number of friends Rohan has is 30.
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In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas?
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In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas?.
In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Rohan birthday party,90% of his friends came and three friends did not come.find the total number of friends rohanhas?.
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