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- Identify CP and SP.
- Find profit/loss amount.
- Use CP as base for percentage if asked.
Correct Answer: C
Correct Answer: C
Method / Topic: Profit and Loss
Profit or loss percentage is calculated on cost price.
Short Explanation
Detailed Explanation
Correct Answer: C
Method / Topic: Profit and Loss
<table cellspacing="0" style="border-collapse:collapse; height:20px; width:85px">
<tbody>
<tr>
<td style="border-bottom:none; border-left:none; border-right:none; border-top:none; height:20px; vertical-align:top; white-space:normal; width:85px"><span style="color:#000000">ANSWER:<br />
34.52%<br />
<br />
<br />
Track numerator and denominator independently. For rates, shares, utilisation, or per-unit measures, identify exactly which base changes.<br />
<br />
CALCULATION:<br />
Updated rate=29×1.25/1.05=34.52%.<br />
<br />
CHECK:<br />
Change numerator and denominator independently before dividing.<br />
<br />
EXAM TIP:<br />
Write the 100% base, denominator, or multiplier before calculating. In multi-step percentage problems, keep each stage separate and update only the quantity that actually changes. For relative comparisons, verify which old value is the denominator. For weighted, finance, mixture, geometry, rate, or exam
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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
- Identify CP and SP.
- Find profit/loss amount.
- Use CP as base for percentage if asked.
For the school health programme, suppose follow-up visits equal 29 units per100 all visits. If the first quantity changes +25% and the total base changes +5%, what percentage results?
Explanation
Correct Answer: C
Method / Topic: Profit and Loss
Profit or loss percentage is calculated on cost price.
Short Explanation
Detailed Explanation
Correct Answer: C
Method / Topic: Profit and Loss
<table cellspacing="0" style="border-collapse:collapse; height:20px; width:85px">
<tbody>
<tr>
<td style="border-bottom:none; border-left:none; border-right:none; border-top:none; height:20px; vertical-align:top; white-space:normal; width:85px"><span style="color:#000000">ANSWER:<br />
34.52%<br />
<br />
<br />
Track numerator and denominator independently. For rates, shares, utilisation, or per-unit measures, identify exactly which base changes.<br />
<br />
CALCULATION:<br />
Updated rate=29×1.25/1.05=34.52%.<br />
<br />
CHECK:<br />
Change numerator and denominator independently before dividing.<br />
<br />
EXAM TIP:<br />
Write the 100% base, denominator, or multiplier before calculating. In multi-step percentage problems, keep each stage separate and update only the quantity that actually changes. For relative comparisons, verify which old value is the denominator. For weighted, finance, mixture, geometry, rate, or exam
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