Question

Three consecutive terms in an A.P adds upto 15 . If their product is 45 , then the terms are ?​

Answer 1

(15-d) x (15+d) = 3240/15 (15)^2 - (d)^2 = 216 -d^2 = 216 - 225 d^ 2 = 9 d = +/-3. If d= +3, The terms are a-d = 15-3=12 a=15 a+d = 15+3=18. If d=-3 ...

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