Jammu and Kashmir Board Solutions for Chapter: Playing With Numbers, Exercise 5: DO THIS

Author:Jammu and Kashmir Board

Jammu and Kashmir Board Mathematics Solutions for Exercise - Jammu and Kashmir Board Solutions for Chapter: Playing With Numbers, Exercise 5: DO THIS

Attempt the free practice questions on Chapter 15: Playing With Numbers, Exercise 5: DO THIS with hints and solutions to strengthen your understanding. MATHEMATICS A TEXTBOOK FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.

Questions from Jammu and Kashmir Board Solutions for Chapter: Playing With Numbers, Exercise 5: DO THIS with Hints & Solutions

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Write a 2-digit number ab and the number obtained by reversing its digits i.e. ba. Let their sum be a 3-digit number dad.

ab+ba=dad

⇒(10a+b)+(10b+a)=dad

⇒11(a+b)=dad

The sum (a+b) cannot exceed 18. Why?

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Write a 2-digit number ab and the number obtained by reversing its digits i.e. ba. Let their sum be a 3-digit number dad.

ab+ba=dad

⇒(10a+b)+(10b+a)=dad

⇒11(a+b)=dad

Write all the 3-digit numbers which are multiples of 11 up to 198.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Write a 2-digit number ab and the number obtained by reversing its digits i.e. ba. Let their sum be a 3-digit number dad.

ab+ba=dad

⇒(10a+b)+(10b+a)=dad

⇒11(a+b)=dad

Find the values of a and d.