Science, asked by shipraj75, 6 months ago

Find which of the two numbers is smaller.
umber of seven digits. Write another number by reversing the digits.
Write any number o​

Answers

Answered by ritisha14
2

Q.no.1 Seven times a two-digit number is equal to four times the number obtained by reversing the digits. If the difference between the digits is 3. Find the number.

ANSWER

Let numbers be x at onces place & y at tens place so,

10y+x is the digit.

Reversed digit =10x+y

According to the question ,

∴7(10y+x)=4(10x+y)

⇒x=2y⟶(i)

Now,

Given , x−y=3

from equation (i)2y=x substitute in above equation.

2y−y=3

y=3

So ,

x=2y=2⋅3=6

∴ Required original no: is =10y+x=10⋅3+6=36.

Answered by Anonymous
1

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