Selina solutions

Selina solutions

Grade 7

Simple Linear Equations (Including Word Problems) | Exercise 12(D)

Question 11

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your mathematics exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 11

Q11)The sum of three consecutive odd numbers is 63. Find the numbers.

Solution :

Let the first odd number = x

Second odd number = x+2

And the third odd number = x+4

According to the condition,

x+x+2+x+4=63

\Rightarrow3x+6=63

⇒3x=63-6

⇒3x=57

⇒x=\frac{57}{3}

⇒x=19

∴ First odd number = x = 19

Second odd number = x + 2 = 19 + 2 = 21

third odd number = x + 4 = 19 + 4 = 23

Hence, the three consecutive odd numbers are 19, 21 and 23.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your mathematics exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube