Question Detail

15.06 * 0.0001 = ?

15060000
0.001506
0.01506
0.1506

Answer: Option B

Explanation:

Clearly after decimal 6 digits should be there.

1. Evaluate
\begin{aligned}
\frac{2.39^2 - 1.61^2}{2.39 - 1.61}
\end{aligned}

Answer: Option C

Explanation:

Use following formula to solve it quickly
\begin{aligned}
\frac{a^2-b^2}{a-b}=\frac{(a+b)(a-b)}{(a-b)} = (a+b)
\end{aligned}
= (2.39+1.61) = 4

2. 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}

3. 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}

4. 0.7683 + 0.369 + 0.05 + 0.8 = ?

1.9873
0.9873
1.8873
1.9872

Answer: Option A

5. Evaluate 2.5 / .0005

5000
500
50000
50

Answer: Option A

Explanation:

2.5 * 10000 / 5 = 25000/5 = 5000

Question Detail

15.06 * 0.0001 = ?

1. Evaluate \begin{aligned} \frac{2.39^2 - 1.61^2}{2.39 - 1.61} \end{aligned}

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

3. Correct expression of \begin{aligned} 6.\overline{46} \end{aligned} is

4. 0.7683 + 0.369 + 0.05 + 0.8 = ?

5. Evaluate 2.5 / .0005

1. Evaluate
\begin{aligned}
\frac{2.39^2 - 1.61^2}{2.39 - 1.61}
\end{aligned}

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

3. Correct expression of \begin{aligned}
6.\overline{46}
\end{aligned} is