alleryഒരു പരീക്ഷയിൽ 70% വിദ്യാർത്ഥികൾ വിജയിച്ചു. 90 വിദ്യാർത്ഥികൾ പരാജയപ്പെട്ടാൽ, മൊത്തം വിദ്യാർത്ഥികളുടെ എണ്ണം കണ്ടെത്തുക.
A300
B250
C200
D350
Answer & Solution
Correct answer: A. 300
1. 70% വിജയിച്ചാൽ, 30% പരാജയപ്പെട്ടു.
2. മൊത്തത്തിൽ, 30% അതിൽ പ്രയോഗിച്ചു = 90, അതിനാൽ ആകെ = 90 * (100/30).
3. = 300.
4. അങ്ങനെ 300 വിദ്യാർത്ഥികൾ പരീക്ഷയെഴുതി.
_Source: SSC CGL Quantitative Aptitude (Percentages), R.S. Aggarwal style and standard practice_
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