Math, asked by Manishkumar51014, 11 months ago

यदि 5, 10, 15, R, 20, 35 और 40 का
समान्तर माध्य 21 हो, तो R का मान होगा​

Answers

Answered by sanju659
7

Step-by-step explanation:

the answer is 22....

i think its right

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