Sex determination in plants was extensively

If (i) P is taller than Q, (ii) R is shorter than P, (iii) S is taller than T but shorter than Q, then who among them is the tallest?

Find the HCF of 15x² + 8x – 12, 3x² + x – 2, 3x² - 2x, 9x² - 12x + 4

`sqrt(5476)` + 40% of 1640 = ? `xx` 4 - 2020

√3970 × √730- √2400 =?

(〖(0.4)〗^(1/3)  × 〖(1/64)〗^(1/4)  × 〖16〗^(1/6)  × 〖(0.256)〗^(2/3))/(〖(0.16)〗^(2/3)  × 4^(-1/2)  ×〖1024〗^(-1/4) ) = ?

What will come in the place of question mark (?) in the given expression?

(70 × 8 ÷ 10) × 5 = ?

Find the simplified value of the following expression:

6² + 12² × 5 - {27² + 16² - 42²}

[(15)³ × (8)²] ÷ (90 × 6) = ?²

125% of 80 – 6 × 4 = ? × 13 – 54

√ (12+√ (12+√ (12+ ⋯ ∞ ))