Question
Given a circle with a diameter of 56 cm, let the area of
the circle be represented as “x” sq cm and the circumference as “ y” cm. Calculate the value of x − y .Solution
Radius of the circle = 56/2 = 28 cm Area of a circle = 22/7 x 28 x 28 = 2464 cm2 Circumference of a circle = 2 x 22/7 x 28 = 176 cm Required value = 2464 - 176 = 2288 Hence, option c.
[(40)2 ÷ 32 × 4] ÷ 50 = ?
30% of 180 + 248 ÷ ? - √256 = 102
((67)32 × (67)-18 / ? = (67)⁸
- What will come in the place of question mark (?) in the given expression?
5555 ÷ 11 ÷ 5 = 100 +? What will come in the place of question mark (?) in the given expression?
642 - 362 = ? X √1225
115 ÷ 23 + 12 × 6 = ? + 16 - 35
2350 – 4830 + 9570 + 3350 – 1720 = ?
(-251 × 21 × -12) ÷ ? = 158.13
(288 ÷ 12 + 15 × 5 + 124) = ?
3.55 + 1.05 + 2.5 × 13 – 12% of 12.5 = ?