CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

3x4y=1...(1)
5x6y=7...(2) 
In the above equations, which of the following step can to be done to numerically equate the coefficients of x?



A

Multiply equation (1) by 6 and equation (2) by 4.

loader
B

Multiply equation (1) by 3 and equation (2) by 5.

loader
C

Multiply equation (1) by 5 and equation (2) by 3.

loader
D

Multiply equation (1) by 4 and equation (2) by 6.

loader

Solution

The correct option is C

Multiply equation (1) by 5 and equation (2) by 3.


Coefficient of x in equation (1) is 3.

Coefficient of x in equation (2) is 5.

So, to make coefficients of x equal, multiply equation (1) by 5 and equation (2) by 3.

Equation (1) × 5 15x20y=5

Equation (2) × 3 15x18y=21


Mathematics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image