Home
Class 8
MATHS
Write a 2-digit number ab and the number...

Write a 2-digit number ab and the number obtained by reversing its digits i.e., ba. Find their sum. Let the sum be a 3-digit number dad i.e, `ab+ba= dad`
`(10a +b) + (10b+a)= dad`
`11(a+b)= dad`
The sum a+b can not exceed 18(Why?)
Is dad a multiple of 11 ?
Is dad less than 198?
Write all the 3-digit numbers which are multiples of 11 upto 198. Find the value of a and d.

Text Solution

Verified by Experts

The correct Answer is:
1
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PLAYING WITH NUMBERS

    SWAN PUBLICATION|Exercise Think, Dicuss And write|4 Videos

  • PLAYING WITH NUMBERS

    SWAN PUBLICATION|Exercise Exercise 1|10 Videos

  • PLAYING WITH NUMBERS

    SWAN PUBLICATION|Exercise Exercise 2|4 Videos

  • MENSURATION

    SWAN PUBLICATION|Exercise Exercise 11.4 |10 Videos

  • PRACTICAL GEOMETRY

    SWAN PUBLICATION|Exercise Try These |4 Videos

Similar Questions

Explore conceptually related problems

Find the sum of all the four digit numbers which are divisible by 29.

The sum of two-digit number and the number obtained by reversing the digits is 66. If the digits of the number differ by 2, find the number. How amny such numbers are there?

Predecessor of a 2-digit number is a 2-digit number.

Two less than smallest 6 digit number is

Find the sum of all 3-digit numbers which leave remainder 2, when divided by 5.

How many three digit numbers leave remainder 2 when divided by 9. Also find their sum.

Find the number of integers between 1 and 100000 having the sum of the digits 18.

Find the sum of all two digit numbers which when divided by 4, yields 1 as remainder.

Find the sum of all two digit numbers which when divided by 4, yields 1 as remainder.

How many different seven digit numbers are there, the sum of whose digits is even ?

Home
Profile