In British India “C-R Formula” was associated

√441 * 7 – 10% of 250 + ? = 140% of 120

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

(352 - ?) ÷ 8 = 2.5 X 40 - 444 ÷ 6

What value should come in the place of (?) in the following questions.

336 ÷ 6 ÷ √16 * ? = 1400 ÷ 4

What value should come in the place of (?) in the following questions?

16 * 15 ÷ 4 + 18 * 9 ÷ 3 = ?

?² × 25 = 4² × 21 + 17² 

?² - (40% of 240) = 2⁵ X 5

Simplify the following expressions and choose the correct option.

18² + (27 ÷ 3) × 11 − 250 = ?

345 × 20 ÷ 4 + 28 + 60 = ? 

(42% of 1500 + 170) ÷ 4 = ?² - 5²