A number when increased by 40 %, gives 3500. The number is:

Correct option is D

Given:

A number increased by 40% results in 3500

Solution:

Let the number be x, Then

​$$x\times\left(1+\frac{40}{100}\right) = 3500$$​​

​$$x = \frac{3500\times 100}{140}$$​​

​$$x = \frac{3500\times 10}{14}$$​​

x  = 2500

Thus, The number is 2500