The ratio of expenditure and saving of a person is 26 : 3 . If his monthly income is ₹ 7250, then what is his monthly savings?

Let the expenditure and saving be ₹ 26y and ₹ 3y, respectively.
Then, according to the question,
26y + 3y = 7250
⇒ 29y = 7250
⇒ y = 7250/29
⇒ y = 250
So, his monthly saving is (250 x 3) i., e ₹ 750