Question Detail

Evaluate
\begin{aligned}
\frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5}
\end{aligned}

80
800
8000
80000

Answer: Option B

Explanation:

\begin{aligned}
\frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5}
\end{aligned}

\begin{aligned}
= \frac{36 \times 48 \times 250}{12 \times 9 \times 5} = 800
\end{aligned}

1. Which is in descending order

11/17, 7/11, 8/15, 5/9
11/17, 5/9, 7/11, 8/15
5/9, 8/15, 11/17, 7/11
11/17, 7/11, 5/9, 8/15

Answer: Option D

2. What decimal of an hour is a second

.0028
.0027
.0026
.0025

Answer: Option B

Explanation:

1/(60*60) = 1/3600 = .0027

3. \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}

4. 617 + 6.017 + 0.617 + 6.0017 = ?

62.96357
62963.57
62.96357
629.6357

Answer: Option D

5. Evaluate
\begin{aligned}
3.\overline{14}
\end{aligned}

\begin{aligned} 3\frac{14}{99} \end{aligned}
\begin{aligned} \frac{14}{99} \end{aligned}
\begin{aligned} 3\frac{14}{90} \end{aligned}
\begin{aligned} 3\frac{1400}{99} \end{aligned}

Answer: Option A

Explanation:

when there is bar above a number, we can simplify it by dividing with 9's (equal to the number below bar, in this question 2 digits are below bar)

Question Detail

Evaluate \begin{aligned} \frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5} \end{aligned}

1. Which is in descending order

2. What decimal of an hour is a second

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

4. 617 + 6.017 + 0.617 + 6.0017 = ?

5. Evaluate \begin{aligned} 3.\overline{14} \end{aligned}

Evaluate
\begin{aligned}
\frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5}
\end{aligned}

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

5. Evaluate
\begin{aligned}
3.\overline{14}
\end{aligned}