NEET Test Series from KOTA - 10 Papers In MS WORD
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SIMPLE EQUATIONS
298085
3(x−1) = 3(x) −3 Classify this equation as a conditional equation
1 An identity
2 A contradiction
3 Association
4 None of the above.
Explanation:
An identity LHS= 3(x-1) = 3x -3 which is equal to RHS. Therefore, it is an identity.
SIMPLE EQUATIONS
298086
Which of the following is not allowed in a given equation?
1 Adding the same number to both sides of the equation.
2 Subtracting the same number from both sides of the equation.
3 Multiplying both sides of the equation by the same non-zero number.
4 Dividing both sides of the equation by the same number.
Explanation:
Dividing both sides of the equation by the same number. Dividing both sides of the equation by the same non-zero number is allowed in a given equation, division of any number by zero is not allowed as set division of number by zero is not defined. Note: If we add same number to both sides of the equation while adding subtracting, then there will be no change in the given equation.
SIMPLE EQUATIONS
298087
The solution of the equation m - 1 = 2 is:
1 1
2 2
3 3
4 6
Explanation:
3 m - 1 = 2 m = 2 + 1 = 3.
SIMPLE EQUATIONS
298088
Twice a number when increased by 7 gives 25. The number is:
1 7
2 9
3 10
4 8
Explanation:
9 Let the number be x. As, twice the number when increased by 7 gives 25. 2x + 7 = 25 2x = 25 - 7 (By transposing 7 to R.H.S.) 2x = 18 \(\Rightarrow\text{x}=\frac{18}{2}\) (By transposing 2 to R.H.S.) \(\therefore\text{x}=9\) So, the number is 9. Hence, the correct alternative is option (b).
298085
3(x−1) = 3(x) −3 Classify this equation as a conditional equation
1 An identity
2 A contradiction
3 Association
4 None of the above.
Explanation:
An identity LHS= 3(x-1) = 3x -3 which is equal to RHS. Therefore, it is an identity.
SIMPLE EQUATIONS
298086
Which of the following is not allowed in a given equation?
1 Adding the same number to both sides of the equation.
2 Subtracting the same number from both sides of the equation.
3 Multiplying both sides of the equation by the same non-zero number.
4 Dividing both sides of the equation by the same number.
Explanation:
Dividing both sides of the equation by the same number. Dividing both sides of the equation by the same non-zero number is allowed in a given equation, division of any number by zero is not allowed as set division of number by zero is not defined. Note: If we add same number to both sides of the equation while adding subtracting, then there will be no change in the given equation.
SIMPLE EQUATIONS
298087
The solution of the equation m - 1 = 2 is:
1 1
2 2
3 3
4 6
Explanation:
3 m - 1 = 2 m = 2 + 1 = 3.
SIMPLE EQUATIONS
298088
Twice a number when increased by 7 gives 25. The number is:
1 7
2 9
3 10
4 8
Explanation:
9 Let the number be x. As, twice the number when increased by 7 gives 25. 2x + 7 = 25 2x = 25 - 7 (By transposing 7 to R.H.S.) 2x = 18 \(\Rightarrow\text{x}=\frac{18}{2}\) (By transposing 2 to R.H.S.) \(\therefore\text{x}=9\) So, the number is 9. Hence, the correct alternative is option (b).
298085
3(x−1) = 3(x) −3 Classify this equation as a conditional equation
1 An identity
2 A contradiction
3 Association
4 None of the above.
Explanation:
An identity LHS= 3(x-1) = 3x -3 which is equal to RHS. Therefore, it is an identity.
SIMPLE EQUATIONS
298086
Which of the following is not allowed in a given equation?
1 Adding the same number to both sides of the equation.
2 Subtracting the same number from both sides of the equation.
3 Multiplying both sides of the equation by the same non-zero number.
4 Dividing both sides of the equation by the same number.
Explanation:
Dividing both sides of the equation by the same number. Dividing both sides of the equation by the same non-zero number is allowed in a given equation, division of any number by zero is not allowed as set division of number by zero is not defined. Note: If we add same number to both sides of the equation while adding subtracting, then there will be no change in the given equation.
SIMPLE EQUATIONS
298087
The solution of the equation m - 1 = 2 is:
1 1
2 2
3 3
4 6
Explanation:
3 m - 1 = 2 m = 2 + 1 = 3.
SIMPLE EQUATIONS
298088
Twice a number when increased by 7 gives 25. The number is:
1 7
2 9
3 10
4 8
Explanation:
9 Let the number be x. As, twice the number when increased by 7 gives 25. 2x + 7 = 25 2x = 25 - 7 (By transposing 7 to R.H.S.) 2x = 18 \(\Rightarrow\text{x}=\frac{18}{2}\) (By transposing 2 to R.H.S.) \(\therefore\text{x}=9\) So, the number is 9. Hence, the correct alternative is option (b).
298085
3(x−1) = 3(x) −3 Classify this equation as a conditional equation
1 An identity
2 A contradiction
3 Association
4 None of the above.
Explanation:
An identity LHS= 3(x-1) = 3x -3 which is equal to RHS. Therefore, it is an identity.
SIMPLE EQUATIONS
298086
Which of the following is not allowed in a given equation?
1 Adding the same number to both sides of the equation.
2 Subtracting the same number from both sides of the equation.
3 Multiplying both sides of the equation by the same non-zero number.
4 Dividing both sides of the equation by the same number.
Explanation:
Dividing both sides of the equation by the same number. Dividing both sides of the equation by the same non-zero number is allowed in a given equation, division of any number by zero is not allowed as set division of number by zero is not defined. Note: If we add same number to both sides of the equation while adding subtracting, then there will be no change in the given equation.
SIMPLE EQUATIONS
298087
The solution of the equation m - 1 = 2 is:
1 1
2 2
3 3
4 6
Explanation:
3 m - 1 = 2 m = 2 + 1 = 3.
SIMPLE EQUATIONS
298088
Twice a number when increased by 7 gives 25. The number is:
1 7
2 9
3 10
4 8
Explanation:
9 Let the number be x. As, twice the number when increased by 7 gives 25. 2x + 7 = 25 2x = 25 - 7 (By transposing 7 to R.H.S.) 2x = 18 \(\Rightarrow\text{x}=\frac{18}{2}\) (By transposing 2 to R.H.S.) \(\therefore\text{x}=9\) So, the number is 9. Hence, the correct alternative is option (b).
