Question

17. A two-digit number is four times the sum of its digits, and is also equal to twice the productof its digits. Find the number.
[CBSE (Delhi) 2004
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Answer 1

Answer:

So the no =36

Step-by-step explanation:

Let the digit are x and y

then number = 10x + y

given that

10x+y=4(x+y)

10x+y=4x+4y

6x=3y

y = 2x.................(1)

Also number 10x+y=2xy

10x+2x=2x*2x

12x=4x²

x=12x/4x=3

y=2x=6

So the no =36

Answer 2

Answer:

X = 2 , Y = 6

so number is 36

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