Math, asked by aadi740, 11 months ago

what is the common difference of an A. P in which a21-a7=84?

Answers

Answered by JATTA7777

2

the commin difference will be 3

Answered by ritikaraj23

2

Answer:

answer is 6

Step-by-step explanation:

a + 20d - (a +6d)= 84

a+ 20d - a - 6d = 84

20d - 6d = 84

14d=84

d = 84/14

d =6

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