UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 10 Tuition from the Best Tutors

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

Book a Free Demo

> > Had Ravita scored 10 more marks in her Mathematics...
✕

Search in

Had Ravita scored 10 more marks in her Mathematics test out of 30 marks, 9 times these marks would have been the square of her actual marks. How many marks did she get in the test?

Asked by Last Modified  

5 Answers

+1

Follow 5
Answer

Please enter your answer

Eco, Maths and Stats Tutor

Let Ravita's score be x out of 30. We first form an equation based on the information provided in the question. The equation turns out to be 9(x+10)=x^2 -> x^2-9x-90=0 -> (x-15)(x+6)=0 SO, the possible values of x are x= 15 or -6. As we can ignore -6 (why?), this tells us Ravita score 15 in her...
read more
Let Ravita's score be x out of 30. We first form an equation based on the information provided in the question. The equation turns out to be 9(x+10)=x^2 -> x^2-9x-90=0 -> (x-15)(x+6)=0 SO, the possible values of x are x= 15 or -6. As we can ignore -6 (why?), this tells us Ravita score 15 in her Math test. read less
Comments
Dislike Bookmark

Coaching Institute

let's take marks scored as 'x' now had (x+10)*9 = x^2 9x+90=x^2 x^2-9x-90=0 x^2-15x+6x-90=0 x(x-15)+6(x-15)=0 hence (x+6)(x-15) = 0 therefore x = -6 ; x = 15 hence she got 15 marks in her test.
Comments
Dislike Bookmark

Maths Tutor

15
Comments
Dislike Bookmark

See this
Comments
Dislike Bookmark

Let the marks scored in Mathematics be x. As given, 9( x+10 ) = x2 x2-9x-90 = 0 x2-15x+6x-90 =0 x(x-15)+6(x-15) = 0 (x+6)(x-15) = 0 Therefore, x = 15 ( x = -6 is ignored)
Comments
Dislike Bookmark

View 3 more Answers

Related Questions

Two numbers are respectively 20% and 50% more than a third number. What is the ratio of the two numbers?
4 : 5.
Tahir
0 0
6
What is the formula for arithmetic mean for unclassified data?
Arithmetic mean of unclassified data x1, x2, x3, x4, ... xn = X X= x1+ x2 + x3 + x4+ ... + xn —--—--——--—--—--——--—--— . n
Raj
Find the sum of: 5 + x - (square of x), 3x + 5 + 2(square of x)?
5+x-square of x+3x+5+2square of x =10+4x+(square of x)
Divya
Define cumulative frequency curve?
Cumulative frequency is the running total of the frequencies. Here is a video that explains it quite well: https://www.youtube.com/watch?v=9lJBJi9dzJE
Subhash
0 0
8
Is it possible to construct a triangle by taking two of its angle: 70, 115?
NOSum of all the angles of a triangle is 180.As 70+115 is exceeding 180 degrees, it is not possible to construct a triangle.
Prasenjit

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

Ask a Question

Related Lessons

Ashish Bhatia

0 0
0
CBSE CLASS 10 IMPORTANT QUESTIONS VIDEO LINK
https://www.youtube.com/watch?v=qX4Ga6hrxJY

Swapna V.

0 0
0
Class-10-Trigonometry-1-PYqs-2023

Ashish Bhatia

0 0
0
Euclid's divsion lemma application in finding H.C.F.
We know that Euclid's Division lemma states if a and b are two positive integers and a>b, then a=bq+r where q and r are two integers, where the value of r is given by 0<=r<b, This principle is...

Palak K.

0 1
0
Mathematics Materials For Students of Class 8 , Class 9 , Class 10

Parijat Bhattacharyya

0 0
0

Recommended Articles

Find Class 10 Tuition near you
Class 10 Tuition in Delhi
Class 10 Tuition in Bangalore
Class 10 Tuition in Hyderabad
Class 10 Tuition in Kolkata
Class 10 Tuition in Mumbai
Class 10 Tuition in Chennai
Class 10 Tuition in Pune
Class 10 Tuition in Noida
Class 10 Tuition in Lucknow
Class 10 Tuition in Jaipur
Online Tuition Class 10

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

ThinkVidya Learning Pvt Ltd © 2010-2025 All Rights Reserved