Question
20.57 ×28.04 ÷ ? + 254 =
429.06 What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)Solution
20.57 ×28.04 ÷ ? + 254 = 429.06 21 ×28 ÷ ? + 254 = 429 21 ×28 ÷ ? = 175 588/(? )= 175 ? = 3.818 ≈ 3
More Approximation Questions
(292 – 141) ÷ 5 + (40 ÷ 2) + 23 = ?
56 x 8 – 65% of 40 = ? + 14 x √625
16 × ? + 36% of 250 = 410
35% of 240 – 6 2 = ? 2 – √256
If 840 ÷ 12 + 1025 ÷ 25 - n + 45 × 4 = 960 ÷ 16 × 132 ÷ 44, then the value of n is:
I. x² + 3x – 154 = 0
II. y² + 5y – 126 = 0
[{70 + (40 - 22) ÷ 3} ÷ 4] = ?
33 + (6.25) % of 1600 = ? + 2 X 55
115% of 40 + 3 × 4 = ? × 11 – 8
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