Question
How many pairs of letters are there in the word
‘REBUILT’ (both forward and backward) , which has as many letters between them in the word as in the English Alphabetical series?Solution
RU is one such pair in the word ‘REBUILT’ (both forward and backward) , which has as many letters between them as in the English Alphabetical Series.
If x and y satisfy x² + y² = 25 and x + y = 7, find xy.
I. x2 + 13x + 42 = 0
II. y² + 13y + 40 = 0
Solve: x² − 7x + 12 = 0
I. 22x² - 97x + 105 = 0
II. 35y² - 61y + 24 = 0
I. 6x2 - 41x+13=0
II. 2y2 - 19y+42=0
Equation 1: x² - 200x + 9600 = 0
Equation 2: y² - 190y + 9025 = 0
The roots of the equations x2 + 16x + 63 = 0
I. 3p² + 13p + 14 = 0
II. 8q² + 26q + 21 = 0
I. 2x2 + 3x - 9 = 0
II. 3y2 - y - 10 = 0
I. √(17x) + √51 = 0  Â
II. √(4y) + 3 = 0