Hard Math Class 12 Level 10

For linear equations 12x+2y=136 and 13x+3y=149, what is the value of x?

Linear equations 12x+2y=136 और 13x+3y=149 का solution x क्या है?

Show answer and explanation
Correct Answer

C. 11

Explanation

Step 1: solve the pair of linear equations. Step 2: by substitution or Cramer's rule, x=11 and y=2. Step 3: exam tip: non-zero determinant gives a unique solution.

Step 1: pair of linear equations solve करें। Step 2: substitution/Cramer's rule से x=11 और y=2 मिलता है। Step 3: exam tip: determinant non-zero हो तो unique solution होता है।

PNG GD SVG HTML Font

Related Questions

117 Easy Math Class 10 Level 1

What is the HCF of 24 and 36?

24 और 36 का महत्तम समापवर्तक क्या है?

Answer and explanation locked 🔒

Tap once to confirm. On the next tap, login will open for the answer.

116 Easy Math Class 10 Level 1

What is the mean of the numbers 2 4 6 and 8?

संख्याओं 2 4 6 और 8 का माध्य क्या है?

Answer and explanation locked 🔒

Tap once to confirm. On the next tap, login will open for the answer.

115 Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

Answer and explanation locked 🔒

Tap once to confirm. On the next tap, login will open for the answer.

113 Easy Math Class 10 Level 1

What is the value of sin 30°?

sin 30° का मान क्या होता है?

Answer and explanation locked 🔒

Tap once to confirm. On the next tap, login will open for the answer.

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.