1.

71.88 × 3.90 + 11.90 = 67.95 + ? × 4.151). 282). 183). 584). 43

Answer»

Given expression is,

71.88 × 3.90 + 11.90 = 67.95 + ? × 4.15

We can write the given values as:

71.88 ≈ 72 and 3.90 ≈ 4

11.90 ≈ 12 and 67.95 ≈ 68 and 4.15 ≈ 4

Then,

⇒ 72 × 4 + 12 = 68 + ? × 4

⇒ 288 + 12 = 68 + ? × 4

⇒ 300 = 68 = ? × 4

⇒ 300 - 68 = ? × 4

⇒ 232 = ? × 4

⇒ ? = 232/4

⇒ ? ≈ 58


Discussion

No Comment Found