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  

3 Answers

Learn Mathematics +1 Class IX-X Tuition

Follow 5
Answer

Please enter your answer

B.Sc.B.Ed.

Let the marks scored by Ravita bemail x. According to the question 9 (x+10)=square of x 9×+90=×^2 ×^2-9×-90=0 (×+6)(×-15)=0 so ×=-6 or 15 X can't be negative so x=15 Ravita got 15 marks.
Comments
Dislike Bookmark

Tutor

X=15. 10+15=25. Square of 26 is225. x2-9x-90. Factors x+6=0. x-15=0. Meaningless X=-6. So x=15. 10 added to 15 is 25 (15 square.is 225.)
Comments
Dislike Bookmark

B.Sc.B.Ed.

Let the marks scored by Ravita bemail x. According to the question 9 (x+10)=square of x 9×+90=×^2 ×^2-9×-90=0 (×+6)(×-15)=0 so ×=-6 or 15 X can't be negative so x=15 Ravita got 15 marks.
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

Is calculus easier than algebra?
Calculus and algebra both are mostly interesting and challenging. It depends on an individual interest whether you are finding it easier or harder
Ajith
0 0
7
Find the mean of first five natural numbers?
The first five natural numbers are : 1,2,3,4,5 MEAN= SUM/Total number 1+2+3+4+5=15 15/5 3 The answer is 3
Anand
Find three numbers in A.P. whose sum is 21 and their product is 231.
Let, three numbers are (a-d), a, (a+d) So, (a-d)+a+(a+d)=21 => a=7 Again, (7-d)×7×(7+d)=231 => (7-d)×(7+d)=231÷7 => 7^2 - d^2 = 33=> d^2 = 49 - 33=> d^2 = 16=> d = 4 So, the numbers are 7-4= 3, 7 and 7+4=11
Laxmi
0 0
5
Write the zeroes of the polynomial x2 + 2x + 1.
If x=-1 then the polynomial will be 0
Mukundan
0 0
7
Is 0 a prime number or not?
Every Prime number has exactly two factors, 1 and itself, and not divisible by any other number, Using the same logic, 0 is divisible 3 , 4 , 5 , 6 and so on, Such as ( 0 x 3 = 0 , 0 x 4 = 0 .......)....
Joy

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

Ask a Question

Related Lessons

The Six Trigonometric Ratios Made Simple

Azumthulla Gilledmanda

0 0
0
AREA OF THE SEMI CIRCLE
The area of a semi circle is the total space inside the semi circle. If radius of the circle = r Then, Area of the circle = (1/2)xπr2 sqare units Here, π=22/7=3.14 aproximately Ex:- radius...

Ramakrishna Dhooli

0 0
0
Class-10 L-8 Introduction to Trigonometry Ex-8.1 Q6

Ashish Bhatia

0 0
0
Class-9-Maths L-9 Circles Ex 9.3 Q1

Ashish Bhatia

0 0
0
Quadratic Equations Example 6

Irfan

0 0
0

Recommended Articles

Meet Swati, a Hindi Tutor from Bangalore

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 >

Meet Raghunandan.G.H, a B. Tech Tutor from...

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 >

Meet Mohammad Wazid, a skilled trainer for...

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 >

Meet Sandhya R, a B.Sc tutor from Bangalore

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 >

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 Chennai
Class 10 Tuition in Mumbai
Class 10 Tuition in Pune
Class 10 Tuition in Noida
Class 10 Tuition in Lucknow
Class 10 Tuition in Gurgaon
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