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Question Detail
What decimal of an hour is a second
- .0028
- .0027
- .0026
- .0025
Answer: Option B
Explanation:
1/(60*60) = 1/3600 = .0027
1. 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
2. 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
3. Arrange the fractions in ascending order
- 5/8 < 7/12 < 3/4< 13/16
- 5/8 < 7/12 < 13/16 < 3/4
- 5/8 < 3/4< 13/16 < 7/12
- 7/12 < 5/8 < 3/4< 13/16
Answer: Option D
Explanation:
5/8 = .625, 7/12 = .5833, 3/4 = .75, 13/16 = .8125
So order will be
7/12 < 5/8 < 3/4< 13/16
4. Value of
\begin{aligned}
0.5\overline{6}
\end{aligned}
- \begin{aligned} \frac{51}{99} \end{aligned}
- \begin{aligned} \frac{51}{90} \end{aligned}
- \begin{aligned} \frac{51}{9} \end{aligned}
- \begin{aligned} \frac{510}{99} \end{aligned}
Answer: Option B
Explanation:
\begin{aligned}
0.5\overline{6} = \frac {56 - 5}{90} = \frac {51}{90}
\end{aligned}
5. What will be vulgar fraction of 0.0056
- 7/1150
- 7/1175
- 7/1250
- 7/1275
Answer: Option C
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