Question Detail

Which is in ascending order

1/3, 2/5, 3/5, 6/7
2/5, 1/3, 3/5, 6/7
1/3, 2/5, 6/7, 3/5
3/5, 6/7, 1/3, 2/5

Answer: Option A

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. 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

4. 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)

5. 1/0.04 is equal to

25.5
2.5
25
.25

Answer: Option C

Explanation:

1/0.04 = (1 * 100)/4 = 100/4 = 25

Question Detail

Which is in ascending order

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. Arrange fractions in descending order

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

5. 1/0.04 is equal to

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Question Detail

Which is in ascending order

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. Arrange fractions in descending order

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

5. 1/0.04 is equal to

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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}

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