Question Detail

What will be the value of
\begin{aligned}
25.732^2 - 15.732^2
\end{aligned}

214.64
314.64
414.64
412.64

Answer: Option C

Explanation:

Can be easily solved with following formula
\begin{aligned}
a^2 - b^2 = (a - b)(a + b)
\end{aligned}

1. 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}

2. 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

3. 0.7683 + 0.369 + 0.05 + 0.8 = ?

1.9873
0.9873
1.8873
1.9872

Answer: Option A

4. Evaluate 35 / .07

400
500
505
None of above

Answer: Option B

Explanation:

35/.07 = 3500/7 = 500

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

What will be the value of \begin{aligned} 25.732^2 - 15.732^2 \end{aligned}

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

2. Which is in ascending order

3. 0.7683 + 0.369 + 0.05 + 0.8 = ?

4. Evaluate 35 / .07

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

What will be the value of
\begin{aligned}
25.732^2 - 15.732^2
\end{aligned}

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

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