Multiple choice Which of the following sentences is correct? Five hundred rupees are big sum. Five hundred rupees is big sum. Five hundred rupees is a big sum. Five hundred rupees are a big sum. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Option 3 is the right choice. 'Five hundred rupees' is a singular noun, thus, needs to be followed by 'is' (singular auxilary). Article 'a' is also needed here.