Question

(iii) The difference of two positive numbers is 48 and the quotient obtained on dividing the one by other is 4. The number are ?
(a) 9,63
(b) 16,64
(c) 20,74
(d) 16,70​​

Answer 1

Answer:

The word variable means something that can vary i.e., change and

constant means that does not vary. The value of a variable is not

fixed. Variables are denoted usually by letters of the English alphabets

such as x, y, z, l, m, n, p, a etc.

• The expressions are formed by performing operations like addition,

subtraction, multiplication and division on the variables and

constants.

• An equation is a condition on a variable (or variables) such that two

expressions in the variable (variables) have equal value.

• The value of the variable for which the equation is satisfied is called

the solution or root of the equation.

• An equation remains the same if the LHS and the RHS are

interchanged.

• In case of balanced equation if we (i) add the same number to both

the sides, or (ii) subtract the same number from both the sides, or

(iii) multiply both sides by the same non-zero number or (iv) divide

both sides by the same non-zero number, the balance remains

undisturbed.

• Transposing means moving from one side to the other. When a term

is transposed from one side of the equation to the other side, its sign

gets changed.

• Transposition of an expression can be carried out in the same way

as the transposition of a term.

Step-by-step explanation:

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