If (A # B) means A is brother of B, (A @ B) means A is

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

{(3600 ÷ 20 of 18) × 30 + 240} = ? % of 1200

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

(16 × 22 + 23) ÷ 15 + 24 = ?² – 16 × 2

Find the simplified value of the given expression:

1.8² + 2.4² + 1.5² - 1.8 x 2.4 - 2.4 x 1.5 - 1.8 x 1.5

If (3 × 144 – 252 ÷ 14) ÷ 18 = √1024 – x, then find the value of ‘x’.

40% of 1820 + 80% of 630 = 90% of 1280 + ?

Simplify the following expressions and choose the correct option.

(3/4 of 256) + (2/5 of 150) - (7² ÷ 7)

Determine the value of 'p' in following expression:

720 ÷ 9 + 640 ÷ 16 - p = √121 X 5 + 6²- 7

60 % of 250 + √169 * 7 = ?² + 45 % of 160