Read the directions carefully and answer the following question.
In a row of girls, Nikita is 16th from the front and in the same row Usha is 12th from the bottom. If they interchange their positions, then Nikita will be 25th from the front. How many girls are between them?
Nikita’s position from the front = 16 Usha’s position from the bottom = 12 When they interchange their positions, then Nikita will be 25th from the front. Case – I, ←15→ Nikita Usha ←11 girls → Case –II, ←15 girls→ Usha → 8 girls ← Nikita ← 11 Girls→
I. 2x2– 25x + 33 = 0
II. 3y2+ 40y + 48 = 0
I. 3x2 – 16x + 21 = 0
II. y2 – 13y + 42 = 0
I. x2 – 18x + 81 = 0
II. y2 – 3y - 28 = 0
If α, β are the roots of the equation x² – px + q = 0, then the value of α2+β2+2αβ is
...I. 4p² + 17p + 15 = 0
II. 3q² + 19q + 28 = 0
I. x2 – 12x + 32 = 0
II. y2 + y - 20 = 0
I. 20y² - 13y + 2 = 0
II. 6x² - 25x + 14 = 0
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
I. 2p2 - 3p – 2 = 0 II. 2q2 - 11q + 15 = 0
I. 8/(21x) - 2/7 = 0
II. 16y² - 24y +9 = 0
