Question
Despite the recent market downturn, (1)/ many investors
remain optimistic (2)/ in the potential growth of emerging markets (3)/ across the next decade.(4) Read the sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The letter of that part is the answer. If there is ‘No error’, the answer is (5). (Ignore errors of punctuation, if any).Solution
Use "about" instead of "in" to correct the phrase to "optimistic about the potential growth."
I. y² - 7 y – 18 = 0
II. x² + 10 x + 16 = 0
I. 2x² - 11x + 12 = 0
II. 12y² + 29y + 15 = 0
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
I. 3p² - 11p + 10 = 0
II. 2q² + 13q + 21 = 0
I. 2x2 – 19x + 45 = 0
II. y2 – 14y + 48 = 0
If the roots of the quadratic equation 6m² + 7m + 8 = 0 are α and β, then what is the value of [(1/α) + (1/β)]?
 If x satisfies x² – 14x + 40 = 0, find x.
I. 81x - 117√x + 40 = 0
II. 81y - 225√y + 136 = 0
If the roots of the quadratic equation 5x² + 4x + 6 = 0 are α and β, then what is the value of [(1/α) + (1/β)]?
...I. 4x² - 21 x + 20 = 0
II. 8y² - 22 y + 15 = 0