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1. The sum of three terms of an Arithmetic Progression is -6 and their product is 90. Find the three terms.
2. A cylindrical jar of diameter 14 centimeters and depth 20 centimeters is half-full of water. 300 leadshots of same size are dropped into the jar and the water level raises by 2.8 centimeters. Find the diameter of each leadshot.
Solution: let the terms of an ap be a-d, a and a+d
sum of these will be 3a=-6, then we get the value of a as -2.
as per the second statement. -8+2 dsquare = 90
then we will have d squared= 49
then value of d is 7
hence the terms are -9, -2, 5
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