10th Maharasthra State Board Maths - 1, Practice set 1.1
10th Maharasthra State Board Maths - 1, Practice set 1.1
Practice Set 1.1
Q.1] Complete the following table.
5x + 3y = 9 --- (1)
2x - 3y = 12 ---- (2)
adding eq (1) and (2)
5x + 3y = 9
2x - 3y = 12
7x = 21
x = 21
7
x = 3
putting x = 3 in eq (1)
5 X 3 + 3y = 9
15 + 3y = 9
3y = 9 - 15
3y = -6
y = -6
3
y = -2
Solution = (x,y) = (3,-2)
Q.2] Solve the fololowing simultaneous equations
1] 3a + 5b = 26 ; a + 5b = 22
3a + 5b = 26 ---- (1)
a + 5b = 22 ---- (2)
Substract eq (1) from (2)
3a + 5b = 26
(-) a + (-)5b = (-)22
2a = 4
a = 4
2
a = 2
putting a = 2 in eq (1)
3 X 2 + 5b = 26
6 + 5b = 26
5b = 26 - 6
5b = 20
b = 20
5
b = 4
Solution = (a,b) = (2,4)
SORRY GUYS DUE TO SOME TECHNICAL PROBLEM I CAN'T GIVE YOU ANSWER OF WHOLE PRACTICE SET IN THIS BLOG I WILL MAKE A SECOND PART OF THIS BLOG AND GIVE ALL ANSWERS OF PRACTICE SET 1.1 AS SOON AS POSSIBLE,
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