Question Detail
0.5 * 0.002 = ?
- 0.0001
- 0.01
- 0.1
- 0.001
Answer: Option D
1. Evaluate 35 / .07
- 400
- 500
- 505
- None of above
Answer: Option B
Explanation:
35/.07 = 3500/7 = 500
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{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}
4. Which is in ascending order
- 3/2, 9/11, 7/9, 8/9
- 3/2, 7/9, 9/11, 8/9
- 9/11, 8/9, 3/2, 7/9
- 7/9, 3/2, 9/11, 8/9
Answer: Option B
5. 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}