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_GEN_GOTOBOTTOM Post Reply Favoured: 0
TOPIC: Re:ap
#603
ROSHNI (User)
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ap 8 Month 23 Day 13 Hour 43 Min ago Karma: 1  
the sum of 4 nos in AP is 48 & the product of the extremes is to the product of the means as 27 to 35,find the nos.
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#604
Neel (User)
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Re:ap 8 Month 23 Day 0 Hour 5 Min ago Karma: 4  
Is it just me or is anyone else getting a kinda useless quadratic?
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#605
WHO AM I ? (User)
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Re:ap 8 Month 22 Day 22 Hour 3 Min ago Karma: 5  
What USELESS THING are u getting NEEL ?????
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#612
ROSHNI (User)
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Re:ap 8 Month 19 Day 12 Hour 14 Min ago Karma: 1  
NEEL PLEASE WRITE THE SOL IN DETAILS........
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#614
Neel (User)
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Re:ap 8 Month 19 Day 23 Hour 32 Min ago Karma: 4  
Actually, made a STOOPID mistake..

Let the terms be a - 3d, a - d, a + d, a + 3d

4/2(a - 3d + a + 3d) = 48 [Sum of an AP formula, look it up from any book]

a = 12

Now next,

[(a - d) (a + d) / (a - 3d) (a + 3d)] = 35/27

Solve the equation for the difference and you have your progression. 6, 10, 14, 18 or 18, 14, 10, 6.

Post edited by: Neel, at: 2008/04/19 20:24
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#616
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Re:ap 8 Month 18 Day 19 Hour 38 Min ago Karma: 1  
GOT TH SAME ANS.............

WELL THANKS NEEL.. ...GOT A SALUTE
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