What will come in the place of question (?) mark in following the question:
30% of 500 + 320 = 260 + ?

The correct answer is 210.

To find the value that replaces the question mark (?), we can solve the given equation step-by-step.

The given equation is:

$30\%of500+320=260+?$

Step 1: Calculate 30% of 500.

$30\%of500=\frac{30}{100}\times 500$

$=30\times 5$

$=150$

Step 2: Substitute this value back into the equation.

$150+320=260+?$

Step 3: Simplify the left-hand side of the equation.

$470=260+?$

Step 4: Solve for the unknown value (?) by subtracting 260 from both sides.

$?=470-260$

$?=210$

Thus, the value that will come in place of the question mark is 210.