No products in the cart.

The sum of digit of a …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

The sum of digit of a two digit number is 15.If the number formed by reversing the digits is less than the original number by 27 .Find the original number

Posted by Hemaksh Kayal 6 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Brahma Reddy 6 years, 9 months ago

Above ans is correct?

0Thank You

Yogita Ingle 6 years, 9 months ago

Let the number with two digits be 10x + y.
Sum of the digits is 15.
⇒ x + y = 15 --------- (1)
Number formed by reversing the digits = (10y + x)

(10x + y) - (10y + x) = 27
⇒ 9x - 9y = 27
⇒ x - y = 3 --------- (2)
Solving equations (1) and (2), we get x = 9 and y = 6.

Therefore, the original number is 10(9) + 6 = 96.

2Thank You

ANSWER

Test

Related Questions

Find the measures of the angles made by the intersecting lines at the vertices of an equivalent triangle

Posted by Arya Jain 1 year, 5 months ago

CBSE > Class 08 > Mathematics

1 answers

Pythagoras theoram ???

Posted by Ojus Dimen 1 year, 5 months ago

CBSE > Class 08 > Mathematics

1 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Monika 8B 6 months, 2 weeks ago

CBSE > Class 08 > Mathematics