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#151 2008-11-19 15:56:56
- ganesh
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Re: *** Problems
#52. Factorize:-
x³ - 23x² + 142x - 120.
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#152 2008-11-21 16:54:40
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#53. Find the square root of 7 + 3√5.
#54. Find the square root of 53 - 12√10.
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#153 2008-12-10 17:51:31
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#55. If 47.2506 = 4A +7/B + 2C + 5/D + 6 E, then what is the value of 5A + 3B +6C + D + 3E equal to?
(1) 53.6003 (2) 53.603 (3) 153.6003 (4) 213.0003
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#154 2008-12-16 00:47:26
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#56. Arrange the following fractions in the descending order:-
#57. Arrange the following in the ascending order:-
.
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#155 2008-12-25 16:27:12
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#58. Find the square root of
#59. If be the sum of n terms of three Arithmetic series, the first erm of each being 1 and the respective common differences 1, 2, and 3, prove that
.
#60. Find the three numbers in Geometric progression such that their sum is and the product of their reciprocals is .
Character is who you are when no one is looking.
#156 2008-12-31 06:23:15
#157 2008-12-31 16:54:05
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Answer to #56:
You are correct, JaneFairfax!
Character is who you are when no one is looking.
#158 2009-01-02 16:22:44
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#61. Mike can walk a certain distance in 40 days when he rests 9 hours a day. How long would he take to walk twice the distance, twice as fast and rest twice as long each day?
Character is who you are when no one is looking.
#159 2009-01-03 01:45:27
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#62. What is a:b equal to if
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#160 2009-01-03 04:31:19
- Identity
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Re: *** Problems
ganesh wrote:
#62. What is a:b equal to if
?
Last edited by Identity (2009-01-03 04:46:25)
#161 2009-01-03 15:39:05
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Answer to #62. You are correct, Identity!
Character is who you are when no one is looking.
#162 2009-01-03 15:54:02
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#63. Find the value of
#64. Simplify:-
.
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#163 2009-01-03 21:17:19
#164 2009-01-03 23:55:34
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Answer to #63:-
You are correct, JaneFairfax!
Character is who you are when no one is looking.
#165 2009-01-04 01:05:50
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#65. A and B earn in the ratio 2:1. They spend in the ratio 5:3 and save in the ratio 4:1. Determine the monthly income of each if the monthly savings of both A and B together is $5000.
Character is who you are when no one is looking.
#166 2009-01-04 07:40:11
#167 2009-01-04 16:38:35
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Answer to #61:-
You are perfectly right, Janefairfax!
Character is who you are when no one is looking.
#168 2009-01-04 16:56:40
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#66. Three numbers form an increasing Geometric Progression. If the middle number is doubled, the new numbers are in Arithmetic Progression. What is the common ratio of the Geometric Progression?
#67. Three distinct real numbers a,b,c are in Geometric Progression such taht a+b+c=xb; then which of the following is true?
(1) 0<x<1
(2) -1<x<3
(3) x<-1 or x>3
(4) -1<x<2
#68. If A and G be the Arithmetic Mean and Geometric Mean of two numbers in the ratio m:n, then the numbers are:
(1)
(2)
(3)
(4)
Character is who you are when no one is looking.
#169 2009-01-04 22:10:21
#170 2009-01-04 23:19:06
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Answer to #68:-
Very good work, JaneFairfax! You're correct!
#69. Find the value of x if
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#171 2009-01-04 23:31:51
#172 2009-01-04 23:50:37
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Answer to #66:-
Perfectly right, Janefairfax!
#70. What is the value of x if
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#173 2009-01-05 00:01:58
#174 2009-01-05 00:21:21
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Answer to #70:-
Correct, Janefairfax! Keep it up!
#71. What is the value of x if
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