Question

What should come in place of question mark (?) in the following question?

\(27\frac{1}{2} + 15\frac{3}{4} - 12\frac{2}{5} + 18\frac{4}{5} = ?\)

1. \(49\frac{{13}}{{20}}\)
2. \(48\frac{{13}}{{20}}\)
3. \(49\frac{{33}}{{20}}\)
4. 49

Answer 1

Correct Answer - Option 1 : \(49\frac{{13}}{{20}}\)

Calculation:

Let us convert all the mixed fractions into improper fractions. Then the equation will become:

55/2 + 63/4 - 62/5 + 94/5 = ?

⇒ 55/2 + 63/4 + 32/5 = ?

⇒ (550 + 315 + 128)/20 = ?

⇒ 993/20 = 49 (13/20)

∴ The value of '?' is 49 (13/20).