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- List the given numbers and units.
- Choose the formula that matches the asked value.
- Simplify carefully and compare with options.
Correct Answer: A
Correct Answer: A
Method / Topic: Mixture and Alligation
The answer follows from the arithmetic relation between the given values.
Short Explanation
Detailed Explanation
Correct Answer: A
Method / Topic: Mixture and Alligation
<table cellspacing="0" style="border-collapse:collapse; width:85px">
<tbody>
<tr>
<td style="background-color:#c1e5f5; border-bottom:.7px solid #45b1e1; border-left:none; border-right:none; border-top:.7px solid #45b1e1; height:20px; vertical-align:top; white-space:normal; width:85px"><span style="color:black">By alligation, 30% solution : 60% solution = (60 - 45) : (45 - 30) = 15 : 15 = 1 : 1.</span></td>
</tr>
</tbody>
</table>
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- List the given numbers and units.
- Choose the formula that matches the asked value.
- Simplify carefully and compare with options.
In what ratio should a 30% acid solution be mixed with a 60% acid solution to obtain a 45% acid solution?
Explanation
Correct Answer: A
Method / Topic: Mixture and Alligation
The answer follows from the arithmetic relation between the given values.
Short Explanation
Detailed Explanation
Correct Answer: A
Method / Topic: Mixture and Alligation
<table cellspacing="0" style="border-collapse:collapse; width:85px">
<tbody>
<tr>
<td style="background-color:#c1e5f5; border-bottom:.7px solid #45b1e1; border-left:none; border-right:none; border-top:.7px solid #45b1e1; height:20px; vertical-align:top; white-space:normal; width:85px"><span style="color:black">By alligation, 30% solution : 60% solution = (60 - 45) : (45 - 30) = 15 : 15 = 1 : 1.</span></td>
</tr>
</tbody>
</table>
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