Exercise 3.4

Author:Jharkhand Board

Jharkhand Board Mathematics Solutions for Exercise 3.4

Simple step-by-step solutions to Exercise 3.4 questions of Pair of Linear Equations in Two Variables from MATHEMATICS - Class X. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise 3.4 with Hints & Solutions

HARD
10th Jharkhand Board
IMPORTANT

Solve the following pair of linear equations by the elimination method and the substitution method.
3x+4y=10 and 2x-2y=2

HARD
10th Jharkhand Board
IMPORTANT

Solve the following pair of linear equations by the elimination method and the substitution method:

 3x-5y-4=0 and 9x=2y+7
 

HARD
10th Jharkhand Board
IMPORTANT

Solve the following pair of linear equations by the elimination method and the substitution method:

 x2+2y3=-1 and x-y3=3

HARD
10th Jharkhand Board
IMPORTANT

Form a pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method:

If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes 12 if we only add 1 to the denominator. What is the fraction?

HARD
10th Jharkhand Board
IMPORTANT

Form the pair of linear equation in the following problem, and find their solutions (if they exist) by the elimination method:

Five years ago, Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as old as Sonu. How old are Nuri and Sonu?

HARD
10th Jharkhand Board
IMPORTANT

Form the pair of linear equation in the following problem, and find its solution (if it exists) by the elimination method:

The sum of the digits of a two-digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the digits. Find the number.

HARD
10th Jharkhand Board
IMPORTANT

Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method:

Meena went to a bank to withdraw 2000. She asked the cashier to give her 50 and 100 notes only. Meena got 25 notes in all. Find how many notes of 50and 100 she received.

HARD
10th Jharkhand Board
IMPORTANT

Form the pair of linear equations in the following problem, and find its solution (if they exist) by the elimination method:

A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid 27 for a book kept for seven days, while Susy paid 21 for the book she kept for five days. Find the fixed charge and the charge for each extra day.