Showing posts with label math sample paper. Show all posts
Showing posts with label math sample paper. Show all posts
Saturday, July 20, 2013

tougher problems in simple equation

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A car did a journey in "t" hours. If the average speed had been "m" km/hr greater, the journey would have taken "y...
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tougher problems on simple equations

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A fraction is such that if "c" is added to the numerator and "d" to the denominator, the value of the fraction becomes ...
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tougher problems on simple equation

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There are two mixtures of  acid and water, one of which contains twice as much water as acid, and  the other three times as much acid as wa...

Simple Equation

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A man bicycles half the distance from  one town to the another at 24 km/hr, and the other half at 16 km/hr. A second man bicycles all the w...

Factorization

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Factorize: a 3 + 2a 2 + 2a + 1 Answer: a 3 + 2a 2 + 2a + 1 = a 3 + 3a 2 + 3a + 1 - a 2 – a = (a +1) 3 – a(a +...
Friday, July 19, 2013

Simultaneous Equation

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A train running from A to B meets with an accident 75 km from A, after which it travels with 3/5th of its original velocity and arrives 3 h...

Simultaneous Equations

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If 2 rabbits and 4 dogs cost $ 1750, three dogs and 2 cats cost $ 1725 and one cat and 3 rabbits cost $ 675. Find the price of each. Let c...

simultaneous equation

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A certain number of two digits is three times the sum of its digits and if 45 be added to it the digits will be reversed, find the number. ...

HCF and LCM

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Find the HCF and LCM of 3x 2 + x -10,   6x 2 – x – 15 and 6x 2 -19x +15 Answer:   3x 2 + x -10 = 3x 2 +6 x- 5x -10 = 3x(x +2) ...

rationalization

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rationalisation

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Wednesday, July 17, 2013

proportion

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if a/b = c/d = e/f then show that these ratios are equal to  (5a - 7c + 3e) / (5b -7d + 3f) Answer: let  a/b = c/d = e/f = k ther...
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