UrbanPro

Take Class 10 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20 % and 10 % respectively, what will be the new ratio?

Asked by Last Modified  

Follow 0
Answer

Please enter your answer

Rs. 1,90,085.
Comments

Let the number of boys = 7k number of girls = 8k Due to increase in percentage, number of boys = 7K*120/100 number of girls = 8K*110/100 New ratio = { 7K*120/100 } : { 8K*110/100 } Or 7:8 can also be written as 70:80 120/100*70 = 84 110/100*80 = 88 so,new ratio= 84 : 88 or 42 : 44 or 21 : 22 Or...
read more
Let the number of boys = 7k number of girls = 8k Due to increase in percentage, number of boys = 7K*120/100 number of girls = 8K*110/100 New ratio = { 7K*120/100 } : { 8K*110/100 } Or 7:8 can also be written as 70:80 120/100*70 = 84 110/100*80 = 88 so,new ratio= 84 : 88 or 42 : 44 or 21 : 22 Or (7x+0.2*7x)/(8x+0.1*8x)=21:22. read less
Comments

Maths expert

Suppose the boys are 7x and girls are 8x. Now 20% of 7x is 1.4x so total is 8.4x and 10 % of 8x is 0.8.So now new number is 8.8x. 8.4x/8.8x=21/22. (Ans)
Comments

JEE/Board Maths Tutor

21/22
Comments

View 2 more Answers

Related Questions

Simplify: log base 6 (216) + [log (42) - log (6)] / log (49)?
216 = 6^3; log 42 - log 6 = log (42/6) = log 7 ; / log (49) = log 7 / 2 log 7 = 1/2 ; Answer = 3 + 1/2 = 3.5
Vishal
0 0
5
What is the formula for geometric mean?
if a,b,c are in gp then GM b=√(a*c)
Brunda
What do you mean by mode with respect to Statistics?
Mode is known as the highest tendency value on which data is spread.
Akhil
If m and n are odd positive integers, then m2 + n2 is even, but not divisible by 4. Justify.
Let the two odd positive numbers be x = 2k + 1 a nd y = 2p + 1 Hence x2 + y2 = (2k + 1)2 + (2p + 1)2 = 4k2 + 4k + 1 + 4p2 + 4p + 1 = 4k2 + 4p2 + 4k + 4p + 2 ...
Sweetu
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons


Trigonometry for 10th Class CBSE
In Trigonometry, students need to concentrate on basic concepts such as angle consideration in right angled triangle, as well as consideration of Trignometric Ratios as per need. Example: Tanα=1/2, find the value of Sinα?

Preparing for Upcoming Board Exams
This year is an exceptional case as students cannot learn properly still due to technological advances, we somehow managed to learn a lot through online classes, e-books, etc. You are closer to the time...

Surface Area of Hemi (Semi) Sphere
If, the radius of a sphere=r Then, 1)CURVED SURFACE AREA OF SEMI(HEMI) SPHERE= 2πr2 2)TOTAL SURFACE AREA OF SEMI(HEMI) SPHERE= 3πr2 Ex;- If,radius of a sphere=r=14cm 1)CURVED SURFACE AREA...

Quadratic Equation Example
Q: The numerator of a fraction is 3 less than the denominator. If 2 is added to both the numerator and the denominator, then the sum of the new and the original fraction is 29/20. Find the...

Recommended Articles

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 10 Tuition Classes?

The best tutors for Class 10 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 10 Tuition with the Best Tutors

The best Tutors for Class 10 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more