What will be numbers?? _ * ( _ + _ ) = 30

Asked by Last Modified  

38 Answers

Follow 2
Answer

Please enter your answer

Shanti Chandra Mathur

Mathematics Tuiter

There are many solutions like 3x(5+5) = 30, or 2x (7+8 ) = 30 i.e sum of two digits must be 30/2 = 15 In other words 2x( any two digits having sum equal to 15 )
Comments
Dislike Bookmark

Math magician

X = Root of 15
Comments
Dislike Bookmark

MATHS TRAINER FOR JEE/AEEE/KVPY/NATA AND SCHOOL TUITIONS FOR STATE BOARD & CBSE 10YEARS EXP

let x be the real number then, x(x+x)=30 therfore x.2x =30 ,ie x^2=15, x=+square root of 15 or -square root of 15. From above sq .root15(2times sq.root 15) =30.
Comments
Dislike Bookmark

Grammar Nazi

1*(0+30)=30 1*(1+29)=30 1*(2+28)=30 1*(3+27)=30 1*(4+26)=30 1*(5+25)=30 1*(6+24)=30 1*(7+23)=30 1*(8+22)=30 1*(9+21)=30 1*(10+20)=30 1*(11+19)=30 1*(12+18)=30 1*(13+17)=30 1*(14+16)=30 1*(15+15)=30 1*(16+14)=30 1*(17+13)=30 1*(18+12)=30 1*(19+11)=30 1*(20+10)=30 1*(21+9)=30 1*(22+8)=30 1*(23+7)=30 1*(24+6)=30 1*(25+5)=30 1*(26+4)=30 1*(27+3)=30 1*(28+2)=30 1*(29+1)=30 1*(30+0)=30 2*(0+15)=30 2*(1+14)=30 2*(2+13)=30 2*(3+12)=30 2*(4+11)=30 2*(5+10)=30 2*(6+9)=30 2*(7+8)=30 2*(8+7)=30 2*(9+6)=30 2*(10+5)=30 2*(11+4)=30 2*(12+3)=30 2*(13+2)=30 2*(14+1)=30 2*(15+0)=30 3*(0+10)=30 3*(1+9)=30 3*(2+8)=30 3*(3+7)=30 3*(4+6)=30 3*(5+5)=30 3*(6+4)=30 3*(7+3)=30 3*(8+2)=30 3*(9+1)=30 3*(10+0)=30 5*(0+6)=30 5*(1+5)=30 5*(2+4)=30 5*(3+3)=30 5*(4+2)=30 5*(5+1)=30 5*(6+0)=30 6*(0+5)=30 6*(1+4)=30 6*(2+3)=30 6*(3+2)=30 6*(4+1)=30 6*(5+0)=30 10*(0+3)=30 10*(1+2)=30 10*(2+1)=30 10*(3+0)=30 Solution: X*(Y+Z)=30 X...
read more
1*(0+30)=30 1*(1+29)=30 1*(2+28)=30 1*(3+27)=30 1*(4+26)=30 1*(5+25)=30 1*(6+24)=30 1*(7+23)=30 1*(8+22)=30 1*(9+21)=30 1*(10+20)=30 1*(11+19)=30 1*(12+18)=30 1*(13+17)=30 1*(14+16)=30 1*(15+15)=30 1*(16+14)=30 1*(17+13)=30 1*(18+12)=30 1*(19+11)=30 1*(20+10)=30 1*(21+9)=30 1*(22+8)=30 1*(23+7)=30 1*(24+6)=30 1*(25+5)=30 1*(26+4)=30 1*(27+3)=30 1*(28+2)=30 1*(29+1)=30 1*(30+0)=30 2*(0+15)=30 2*(1+14)=30 2*(2+13)=30 2*(3+12)=30 2*(4+11)=30 2*(5+10)=30 2*(6+9)=30 2*(7+8)=30 2*(8+7)=30 2*(9+6)=30 2*(10+5)=30 2*(11+4)=30 2*(12+3)=30 2*(13+2)=30 2*(14+1)=30 2*(15+0)=30 3*(0+10)=30 3*(1+9)=30 3*(2+8)=30 3*(3+7)=30 3*(4+6)=30 3*(5+5)=30 3*(6+4)=30 3*(7+3)=30 3*(8+2)=30 3*(9+1)=30 3*(10+0)=30 5*(0+6)=30 5*(1+5)=30 5*(2+4)=30 5*(3+3)=30 5*(4+2)=30 5*(5+1)=30 5*(6+0)=30 6*(0+5)=30 6*(1+4)=30 6*(2+3)=30 6*(3+2)=30 6*(4+1)=30 6*(5+0)=30 10*(0+3)=30 10*(1+2)=30 10*(2+1)=30 10*(3+0)=30 Solution: X*(Y+Z)=30 X and (Y+Z) have to be multiples of 30. read less
Comments
Dislike Bookmark

Mathematician

Just ask the question properly,are the numbers must be single digit or may be double digit.If single digit there will less number of solutions like (3,4,6),(2,7,8).... and if double digit then there will number of answers like in case let a be 1 then the other two numbers must be sum of 30 so (1,29),(2,28),(3,27)......so...
read more
Just ask the question properly,are the numbers must be single digit or may be double digit.If single digit there will less number of solutions like (3,4,6),(2,7,8).... and if double digit then there will number of answers like in case let a be 1 then the other two numbers must be sum of 30 so (1,29),(2,28),(3,27)......so on and also be particular that the question is wether find the number of solutions ?or find solutions ? if question is about number of solutions then we must use permutations and combinations concept read less
Comments
Dislike Bookmark

The Best Home Tutor

infinite
Comments
Dislike Bookmark

Sanskrit tutor for cbse and sb, private

3*(5+5)=30
Comments
Dislike Bookmark

Online Math Tutor for IGCSE & IB Boards with 20 years of teaching experience

there can be any multiple sets of numbers qualifying this equation. eg. 2 *( 8+7) = 30, 3 *(4+6) = 30, 10* (2+1) = 30 and many more.
Comments
Dislike Bookmark

Professional Tutor with 15 years of experience.

there are many solutions
Comments
Dislike Bookmark

Home tutor in Ramamurthy nagar

Are there any more equations available alongside this? There are three unknowns and one equation. So you cannot solve this using Algebra. You can only solve this using trial and error.
Comments
Dislike Bookmark

View 36 more Answers

Related Questions

What is premium membership?
Premium subscription with urbanpro.com, brings more than just a form. Additional features help you reach/contact parents/students easily, manage your profiles conveniently and manage responses being received efficiently.
Soniea

"निशान्धकारे" explain the sandhi  ?
Which language you want ?? If you have it in Telugu it is savarnadeergha sandhi. Nisa and andhakaara.both words end with the sound a.when it happens this will be savarna dheerga sandhi.
Renu
How to take sign in equations of motions?
Infinite
Ravi Ranjan
0 0
9
What is the difference between IGCSE and CBSE ?
CBSE is Central Board of Secondary Education whereas IGCSE is International General Certificate of Secondary Education. Students from any Boards can join IGCSE Board in the 9th grade whereas aspirants...
Oscar Sivale
Which planet is nearest to the Sun?
Mercury Distance from Sun: 57.91 million km Radius: 2,440 km Mass: 3.285 × 10^23 kg (0.055 M?) Length of day: 58d 15h 30m Orbital period: 88 days Gravity: 3.7 m/s²
Dr. Anshu
3 0
9

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

Ask a Question

Related Lessons

Active and Passive Voice
Active And Passive Voice When emphasis is to be given to the doer, a sentence is written in Active voice. If the action is to be given the emphasis, it is written in Passive voice. Let us look at the...

Shanthi Priya P.

1 1
0
English: Question Tags
Question Tags: 1) Question Tags are used to check or clarify the information. 2) They consists of an auxilary or modal verb + subject pronoun. The subject can be of any gender, person or thing. E.g....
A

Atharva

2 0
0
How to convert Decimal into Percentage.
How to convert a decimal into percentage?We will follow the below following steps for converting a decimal into a percentage:Step I: Obtain the number in decimal form.Step II: Multiply the number in decimal...

Padmini R.

1 0
0
Preparing study schedule. Getting Started
When planning your study schedule, - Go through the syllabus several times to familiarise yourself with what you are expected to learn in a particular school term/ trimester/semester. - Then refer to...
A

Aarthi

0 0
0
Some Basic Questions On Latent Heat
1. Why do we see water droplets on the outer surface of a glass containing ice-cold water?We know that water vapour is present in the air. So when the air is passing through the glass the water vapour...

Soumi R.

4 0
0

Recommended Articles

The Rising Problems in Indian Government School

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Science, Arts Or Commerce - Which One To Go For?

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

The Trend of E-learning and it’s Benefits

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Find Class VIII near you
Class VIII in Delhi
Class VIII in Bangalore
Class VIII in Hyderabad
Class VIII in Kolkata
Class VIII in Mumbai
Class VIII in Chennai
Class VIII in Pune
Class VIII in Noida
Class VIII in Gurgaon
Class VIII in Lucknow
Online Tuition Class 8

Looking for Class 8 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you