Question
Find out the error according to the grammar and context of
the given sentences. If there is no error, mark option 5, i.e. No error. (Ignore the punctuation errors, if any.) In Troy, Alabama, parks officials said the (1)/ recreation centre where many (2)/ residents had taken refuge had to (3)/ closed due to damage from overnight storms. (4)/ no error (5)Solution
The phrase "had to" is a modal verb construction that requires the base form of the verb, which in this case should be "be" followed by the past participle "closed". The structure should be "had to be closed", not just "had to closed."Thus, the corrected sentence would be:"In Troy, Alabama, parks officials said the recreation centre where many residents had taken refuge had to be closed due to damage from overnight storms.
564.932 + 849.029 – 425.08 = 612.095 + ?
44.87% of (39.85 × ?) – 1520.88 0.51 = 1400.8
?% of (128.31 ÷ 15.97 × 75.011) = 419.98
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
 (799.81/64) ÷ (10/799.92) × (129.84/130) = ?
...- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
 What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
A boat can travel 30 km upstream and 45 km downstream in 6 hours. Find the speed of the boat in still water if the speed of the stream is 4 km/h.
? = 200.24 + 1077.97 – 14.992