Which committee recommended the introduction of the

(2 ÷ 3) × (4 ÷ 12) × (? ÷ 10) × 45 × (1 ÷ 5) = (? ÷ 6) + (2 ÷ 5)

?² = 37% of 800 – 14 × 18+ 5! - 20

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

59.92 × 15.11 + √4224 = ? + 144.9 

(320 + 342 + 530 + 915) ÷ (20 + 22 – x + 18) = 43, then the value of x is:

1240 ÷ ? = 24² + 12³ – 514 × 4

(42% of 1500 + 170) ÷ 4 = ?² - 5² 

`(256/6561)<sup>(1/4)</sup> = ?`

Find the value of the expression:

18 + 12 – 4 × [22 + 6 – 2 × (38 – 23)]

3.2% of 500 × 2.4% of ? = 288

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

? = (40% of 80% of 6400) ÷ 64