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myLot reputation of 98/100. Wulfric (104)   ranked 1 out of 14 in mathematics3 years ago

Such that their Sum is 216 & HCF is 27..

[Please Also give solution, not only answer]

 
 
mathematics
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tags:  numbers, find, 2
 
1. myLot reputation of 86/100. vijayganesh (350)   ranked 5 out of 14 in mathematics   3 years ago

According to my calculations,
the numbers are 135 and 81.
135 + 81= 216.

As

LCM of 135 is 27, 5, 1.
LCM of 081 is 27, 3. 1.

Hence HCF is 27.

Thats it.
Is it correct.

Thanks.


myLot reputation of 98/100. Wulfric (104)   ranked 1 out of 14 in mathematics  3 years ago

Good, That's right..
But, there is another possible answer..
Give your method..


myLot reputation of 86/100. vijayganesh (350)   ranked 5 out of 14 in mathematics  3 years ago

First, I saw the table of 27.
Its Obvious that each number must be a multiple of 27, as 27 is the HCF.

Then there comes out only two numbers that is 135 and 81, whose sum is 216 and HCF is 27.

This is my method for the solution.

Thanks, have a nice day.

Bye.


myLot reputation of 98/100. Wulfric (104)   ranked 1 out of 14 in mathematics  3 years ago

What about 189 & 27..

They also satisfy the condition..!!

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2. myLot reputation of 41/100. srini_the_creator (173)   ranked 14 out of 14 in mathematics   3 years ago

Let the Numbers be X and Y
Since 27 is the H.C.F of those numbers so
X= 27*a and Y= 27*b; Now a and b have no common factors
Given Sum of Number is 216
=> X + Y= 216
=>27*a + 27*b= 216
=> a + b= 8
Now possible values of a n b are (1,7) & (3,5)
So the possible Numbers are (27,189) & (81,135)

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