C-12-Q063mediumsingle_mcq

The solution $(x, y)$ of $\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -3$ is —

a $(12, 6)$
b $(6, 12)$
c $(8, 3)$
d $(3, 8)$

ব্যাখ্যা

Clearing fractions turns the equations into $3x+2y=48$ and $5x-12y=-12$ ; eliminating $y$ gives $23x=276$ , so $x=12$ and then $y=6$ . Thus $(x,y)=(12,6)$ .

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Simple Simultaneous Equations in Two Variables — সব প্রশ্ন দেখুন (152টি) →

The solution $(x, y)$ of $\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -3$ is —

(12, 6)

(6, 12)

(8, 3)

(3, 8)

ব্যাখ্যা

Clearing fractions turns the equations into $3x+2y=48$ and $5x-12y=-12$ ; eliminating $y$ gives $23x=276$ , so $x=12$ and then $y=6$ . Thus $(x,y)=(12,6)$ .

The solution (x,y)(x, y)(x,y) of x2+y3=8, 5x4−3y=−3\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -32x​+3y​=8,45x​−3y=−3 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The solution (x,y)(x, y)(x,y) of x2+y3=8, 5x4−3y=−3\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -32x​+3y​=8,45x​−3y=−3 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The solution $(x, y)$ of $\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -3$ is —

The solution $(x, y)$ of $\dfrac{x}{2} + \dfrac{y}{3} = 8,\; \dfrac{5x}{4} - 3y = -3$ is —