Question
Given below is a sentence with an error. The error is in
one part of the sentence. Below the sentence are given the options containing the parts of the sentence. Choose the option which contains the error. The new intern was not only /hardworking but also/ enthusiastic and/ willingness to learn quickly.Solution
The sentence uses "not only... but also...", which requires parallel grammatical forms.
"hardworking" (adjective)
"enthusiastic" (adjective)
So the third item must also be an adjective or adjective phrase, not a noun like "willingness".
The correct adjective form is "willing", not "willingness".
Hence, Option 4 contains the error.
If √3n 729, then the value of n is equal to:

Simplify the following expressions and choose the correct option.
18² + (27 ÷ 3) × 11 − 250 = ?
√144 × √121 + 25% of 600 = ? + 256
Simplify the following expression:-
What will come in the place of question mark (?) in the given expression?
? × 18 + 3072 ÷ 24 = 20% of 1900Â
Simplify the following expression:
  (525 +175) ² - (525 – 175) ² / (525 × 175)
? = 6.25% of 240 + 25 2 + 17 2 – 16 × 17
(8.4 × 6.5 ×2.52 )/(5.04 ×3.25 ×2.1) = ?
Simplify: 3/4 of 2½ + 2/3 of 1½