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
- What will come in place of (?), in the given expression.
(28 × 4) + (96 ÷ 4) – 25 = ? 
What will come in place of (?) in the given expression.
(18 × 2) + (72 ÷ 3) – 16 = ?65% of ? = 50 + 20 × 4
What will come in the place of question mark (?) in the given expression?
(3.2 × 35 + ?) ÷ √16 = 38.5
- What will come in the place of question mark (?) in the given expression?
45% of 1020 + ?% of 960 = 747
56 × 18 + ? × 21 – 49 × 12 = 63 × 26
What will come in the place of question mark (?) in the given expression?
? = (27 × 13) – 26% of (412 – 92 )
- Find the simplified value of the expression:
81 ÷ 9 of 3 × 4 + [12 of 5 – {18 of 2 × (10/5) ÷ 36}] – 15
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