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If 18 , a , b , -3 are in A.P,then find a+b. |
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Answer» ong>Answer: a=11 b=4 Step-by-step EXPLANATION: Diff BW 18 and -3 is 21. There are 3 equal spaces between them. So length of each space would be 21/3=7. So, a=18-7=11 b=11-6=4 |
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