Question:medium

Which of the following sentences is incorrect?

Updated On: Sep 24, 2026
  • A number of questions has been set
  • Heaps of sand are lying on the bank
  • Mathematics is a difficult subject
  • There are still lot to decide
Show Solution

The Correct Option is A

Solution and Explanation

Step 1: Isolate the verb in each option:
B → 'are' (correct, plural subject 'heaps'); C → 'is' (correct, 'Mathematics' is a singular-only noun); A → 'has' (subject 'a number of questions' requires a plural verb).

Step 2: Confirm the rule:
'A number of' + plural noun always pairs with a plural verb — this is a standard, frequently tested subject-verb agreement rule.

Final Answer:
(A) is the incorrect sentence.
Was this answer helpful?
0

Top Questions on Error Correction