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Question Detail
Find the value of X
3889 + 12.952 - X = 3854.002
- 47.95
- 44.95
- 43.95
- 40.95
Answer: Option A
1. 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)
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. 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
4. Evaluate
\begin{aligned}
\frac{2.39^2 - 1.61^2}{2.39 - 1.61}
\end{aligned}
- 2
- 3
- 4
- 5
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
5. \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}
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