Question
? 2 + (39.99 × 10.99 + 7.01) - (39.99 ×
2.99 2 + 21.99) = 21.99 × 23.01 What approximate value will come in place of the question mark (?) in the following question?(Note: You are not expected to calculate the exact value.)Solution
ATQ, ?2 + (39.99 × 10.99 + 7.01) - (39.99 × 2.992 + 21.99) = 21.99 × 23.01 ?2 + (40 × 11 + 7) - (40 × 32 + 22) = 22 × 23 ?2 + (440 + 7) - (360 + 22) = 22 × 23 ?2 + 447 - 382 ~ 22 × 23 ?2 + 65 ~ 506 ?2 ~ 441 ? ~ 21
More Approximation Questions
74% of 2840 + 80% of 1640 - ?= 47²
85% of 620 + ? % of 1082 = 4855
√0.49 + √6.25 + √1.44 + √1.21 =? % of 125
√49 + √144% of 3600 = ?
√256 × 25 – 15 × 14 =?
216% of 350 + 273 = ?2 × 21
`2(1/3)` + `4(1/4)` + `4(2/3)` + `8(7/6)` + ? = `4(3/5)xx4(1/2)`
...{(522 – 482 ) ÷ (27 + 73)} × 35 = ?% of 17
95% of 830 - ? % of 2770 = 650
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