What approximate value should come in the place of the question mark (?) in the following question? (You are not expected to calculate the exact value)
21.72 × 3.34 ÷ 2.11 = 11.09 × ?Given expression is,
⇒ 21.72 × 3.34 ÷ 2.11 = 11.09 × ?
We can write the given values as:
⇒ 21.72 ≈ 22 and 3.34 ≈ 3
⇒ 2.11 ≈ 2 and 11.09 ≈ 11
Then,
⇒ 22 × 3 ÷ 2 = 11 × ?
⇒ 22 × (3/2) = 11 × ?
⇒ 33 = 11 × ?
⇒ ? = 33/11
∴ ? ≈ 3