Question

1) x वy या चलातील एकसामायिक समीकरणांसाठी जर
D. = 20,D, = 40 आणि D = 5, तर 'y' ची
किंमत काढा.
(A)8
(B)5
(C)-8 (D)6​

Answer 1

Answer:

In which language this question is ?

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

For the equations with variables x and y

$\sf{D_x = 20\: , \: D_y = 40 \: , \: D = 5}$

Then value of y is

(A) 8

(B) 5

(C) - 8

(D) 6

EVALUATION

Here it is given that for the equations with variables x and y

$\sf{D_x = 20\: , \: D_y = 40 \: , \: D = 5}$

Hence

$\displaystyle \sf{x = \frac{D_x}{D} = \frac{20}{5} = 4 }$

$\displaystyle \sf{y = \frac{D_y}{D} = \frac{ 40}{5} = 8 }$

FINAL ANSWER

Hence the correct option is (A) 8

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