CBSE Class 11-science Answered
Find four numbers in G.P. whose sum is 85 and product is 4096.???!!!
I am not getting the solution can u help me ...
Asked by Vrushabh | 11 Nov, 2018, 04:38: PM
Expert Answer
Let a/r3 a/r a and ar3 are the four numbers in G.P.
sum of the numbers = 85
a/r3 + a/r + a + ar3 = 85
a(1/r3 + 1/r + 1 + r3) = 85........(i)
Product of teh numbers = 4096
a/r3 × a/r × a × ar3 = 4096
a4 = 4096
a = 8
Put it in (i) and solve it we get r = 2 then find the numbers.
Answered by Sneha shidid | 12 Nov, 2018, 12:57: PM
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