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15.06 * 0.0001 = ?

  • 15060000
  • 0.001506
  • 0.01506
  • 0.1506

Answer: Option B

Explanation:

Clearly after decimal 6 digits should be there.

Similar Questions :

1. 792.02 + 101.32 - 206.76

  • 676.58
  • 687.58
  • 686.58
  • 586.58

Answer: Option C

2. \begin{aligned}
(0.34\overline{67} + 0.13\overline{33}) = ?
\end{aligned}

  • \begin{aligned} 0.048\overline{01} \end{aligned}
  • \begin{aligned} 4.8\overline{01} \end{aligned}
  • \begin{aligned} 48.\overline{01} \end{aligned}
  • \begin{aligned} 0.48\overline{01} \end{aligned}

Answer: Option D

Explanation:

\begin{aligned}
(0.34\overline{67} + 0.13\overline{33})\end{aligned}
\begin{aligned} =
\frac{3467-34}{9900} + \frac{1333-13}{9900}
\end{aligned}
\begin{aligned}
= \frac{3433 + 1320}{9900}
= \frac{4753}{9900}
\end{aligned}
\begin{aligned}
= \frac{4801 - 48}{9900}
= 0.48\overline{01}
\end{aligned}

3. Evaluate
\begin{aligned} \frac{10.3 \times 10.3 \times 10.3 + 1}{10.3 \times 10.3 - 10.3 + 1}
\end{aligned}

  • 113
  • 1.13
  • 11.3
  • 113

Answer: Option C

Explanation:

\begin{aligned}
a^3 + b^3 = (a+b)(a^2 + b^2 - ab)
\end{aligned}

\begin{aligned}
= \frac{10.3^3 + 1^3}
{10.3^2 + 1^2 - 10.3 \times 1}
\end{aligned}

\begin{aligned}
= (a+b) = (10.3+1) = 11.3
\end{aligned}

4. Arrange fractions in descending order

  • 9/11 > 8/9 > 3/5 > 4/7
  • 9/11 > 8/9 > 4/7 > 3/5
  • 8/9 > 9/11 > 3/5 > 4/7
  • 9/11 >3/5 > 8/9 > 4/7

Answer: Option C

Explanation:

9/11 = .818 , 8/9 = .88 , 3/5 = .6, 4/7 = .571

So order is 8/9 > 9/11 > 3/5 > 4/7

5. Evaluate
6202.5 + 620.25 + 62.025 + 6.2025 + .62025

  • 6791.59775
  • 6891.59775
  • 6891.59675
  • 5891.59775

Answer: Option B

Explanation:

Just we need to take care to put decimal under decimal, rest add in a simple way

Read more from - Decimal Fraction Questions Answers