Question

There were 1050 people in a party. 20% of the people left. How many were still in the party?

• A. 840
• B. 210
• C. 420
• D. 680

Answer 1

The correct option is A 840

Total number of people = 1050.

20% of 1050 people left.

$\Rightarrow \frac{20}{100}\times 1050$

$\Rightarrow \frac{2}{10}\times 1050$

$\Rightarrow \frac{2}{1}\times 105$

$\Rightarrow 2\times 105=210$

$\text{So, the number of people remaining in the party = 1050 - 210 = 840}$