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Question Detail
Correct expression of \begin{aligned}
6.\overline{46}
\end{aligned} is
- \begin{aligned} \frac{640}{99} \end{aligned}
- \begin{aligned} \frac{640}{90} \end{aligned}
- \begin{aligned} \frac{64000}{99} \end{aligned}
- \begin{aligned} \frac{640}{9} \end{aligned}
Answer: Option A
Explanation:
\begin{aligned}
6.\overline{46} = 6 + 0.\overline{46}
= 6 + \frac{46}{99}
= 6\frac{46}{99} = \frac{640}{99}
\end{aligned}
1. 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
2. \begin{aligned}
\frac{5 \times 1.6 - 2 \times 1.4}{1.3} = ?
\end{aligned}
- 1
- 2
- 3
- 4
- 5
Answer: Option D
Explanation:
As per given equation we can solve like this :
\begin{aligned}
= \frac{8 - 2.8}{1.3} \\
= \frac{5.2}{1.3} = \frac{52}{13} \\
= 4
\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. If 144/0.144 = 14.4/x, then x = ?
- 0.144
- 0.0144
- .00144
- 1.44
Answer: Option B
5. Which is smallest
- 13/16
- 15/19
- 17/21
- 7/8
Answer: Option B
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