Write 3.03, 2.75 and 2.5 in ascending order.

The given decimals are unlike.

∴ Their corresponding like decimals are 3.03, 2.75 and 2.50.

Now neglecting the decimals, we have 303, 275 and 250.

Since, 303 > 275 > 250,

we have 3.03 > 2.75 > 2.50

∴ Ascending order is 2.50 < 2.75 < 3.03