alleryഒരു സംഖ്യ 30% വർദ്ധിപ്പിക്കുമ്പോൾ 195 ആയി മാറുന്നു. യഥാർത്ഥ നമ്പർ ഇതാണ്:
A150
B140
C130
D160
Answer & Solution
Correct answer: A. 150
1. ഒറിജിനൽ x ആയിരിക്കട്ടെ.
അപ്പോൾ സമവാക്യം ഇതാണ്: x + (30% x-ന് പ്രയോഗിച്ചു) = 195.
2. 1.30 * x = 195.
3. x = 195 / 1.30 = 150.
4. അതിനാൽ യഥാർത്ഥ നമ്പർ 150 ആണ്.
_Source: SSC CGL Quantitative Aptitude (Percentages), R.S. Aggarwal style and standard practice_
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