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A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it?
Most Upvoted Answer
A number consist of two digits whose sum is 9. If 27 is added to the n...
Let, the tens digit number is x
then the units place number is 9-x.
therefore the original number is
10x+9-x=9x+9
then adding the 27 the digits changes there place after changing the place the tens number become 10(9-x)
and the units number become x.
then the number :
10(9-x) +x = 90-10x+x =90-9x
therefore
=> 9x+9+27=90-9x
=> 9x+9x=90-9-27
=> 18x=90-36
=> x=54/18
=> x=3
then the tens digits is 3 and units place 9-3=6
then the number is=36
or according the original number
9x+9 =9×3+9 =36
then the units place number is 9-x.
therefore the original number is
10x+9-x=9x+9
then adding the 27 the digits changes there place after changing the place the tens number become 10(9-x)
and the units number become x.
then the number :
10(9-x) +x = 90-10x+x =90-9x
therefore
=> 9x+9+27=90-9x
=> 9x+9x=90-9-27
=> 18x=90-36
=> x=54/18
=> x=3
then the tens digits is 3 and units place 9-3=6
then the number is=36
or according the original number
9x+9 =9×3+9 =36
Community Answer
A number consist of two digits whose sum is 9. If 27 is added to the n...
Let, the tens digit number is x.
then the units place number is 9-x.
therefore the original number is
10x+9-x=9x+9
then adding the 27 the digits changes there place after changing the place the tens number become 10(9-x)
and the units number become x.
then the number :
10(9-x) +x = 90-10x+x =90-9x
therefore
=> 9x+9+27=90-9x
=> 9x+9x=90-9-27
=> 18x=90-36
=> x=54/18
=> x=3
then the tens digits is 3 and units place 9-3=6
then the number is=36
or according the original number
9x+9 =9×3+9 =36
then the units place number is 9-x.
therefore the original number is
10x+9-x=9x+9
then adding the 27 the digits changes there place after changing the place the tens number become 10(9-x)
and the units number become x.
then the number :
10(9-x) +x = 90-10x+x =90-9x
therefore
=> 9x+9+27=90-9x
=> 9x+9x=90-9-27
=> 18x=90-36
=> x=54/18
=> x=3
then the tens digits is 3 and units place 9-3=6
then the number is=36
or according the original number
9x+9 =9×3+9 =36
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A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it?.
A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A number consist of two digits whose sum is 9. If 27 is added to the number ,the digits change their places . Find the number. Plz solve it?.
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