Q.

(i) Express 49 as the sum of 7 odd numbers. 

(ii) Express 121 as the sum of 11 odd numbers.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

(i)

We know that,

72= 49

So, 49 can be expressed as sum of 7 consecutive odd numbers.

49 = 1 + 3 + 5 + 7 + 9 + 11 + 13

(ii)

We know that,

112= 121

So, 121 can be expressed as sum of 11 consecutive odd numbers.

121 = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21

 

Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon