Which of the following districts has population growth

{(21/20) + (20/21)}² - {(21/20) - (20/21)}² = ?

If (x –1.3)³+(x–1.4)³+(x–1.5)³ = 3(x–1.3)(x–1.4)(x–1.5), Then x = ?

If x + y + xy = 118, such that x < y and both 'x' and 'y' are positive integers, then find minimum value of (x + y) .

If x² – 8√2x + 1 = 0, then what is the value of x³ + 1/x³.

Find the 36th term of the series 25, 29, 33……

(p + q) = 8 and (p² + q² - 6) = 28. If p < q, then determine the value of (p/q).

Given that (3a + 7b = 54) and (ab = 24), determine the value of (9a² + 49b²).

If ( p = 60 - q - r ) and ( pq + r(q + p) = 1080), then find the value of ( p² + q² + r²).