alleryஒரு எண் 30%ஆல் அதிகரிக்கப்படும்போது 195 ஆகிறது. அசல் எண்:
A150
B140
C130
D160
Answer & Solution
Correct answer: A. 150
1. அசல் x ஆக இருக்கட்டும்.
பின்னர் x = 195 இல் x + 30%.
2. 1.30 * x = 195.
3. x = 195 / 1.30 = 150.
4. எனவே அசல் எண் 150 ஆகும்.
_Source: SSC CGL Quantitative Aptitude (Percentages), R.S. Aggarwal style and standard practice_
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