Which one of the following essential nutrient elements

46.2 × 8.4 × 3 + ? = 1200

{(420 ÷ 28)% of 1400} ÷ 7 = ?

3(2/3) of 2(5/11) of 5(2/5) of 75 = ?

Find the value of 325 × 5 + 31 × 21 – 22 × (63 − 52).

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

(44 × 72 ÷ 6) ÷ 11 = (9² + ?) ÷ 3

√10201 × √3969 - (52)² = √? + (60)²

What will be the value of the following expression?

0.04 ÷0.002 × 0.05 × 50

2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)

40.5 ÷ [4/5 of (32 + 18) - 29/2] = ? ÷ 102

95% of 830 - ? % of 2770 = 650