Math, asked by meet100200, 9 months ago

Without adding find the sum
(a) 1 + 3 + 5 + 7 + ..... + 23 = ?
(C) 1 + 3 + 5 + 7 + ..... + 39 = ?

Answers

Answered by deepag0410

2

Answer:

a)7

c)23

Step-by-step explanation:

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Answered by ujju381946

0

Answer:

the total numbers in (a) are 12, there sum=12×12=144.

the total numbers in (c) are 20,there sum=20×20=400.

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