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ഒരു സംഖ്യ 20% കുറച്ചാൽ 228 ആയി മാറുന്നു. എത്ര ശതമാനം വർദ്ധിപ്പിച്ചാൽ സംഖ്യ 313.5 ആകും

A110%

B10%

C125%

D8%

Answer:

B. 10%

Read Explanation:

സംഖ്യ X ആയാൽ X × 80/100 = 228 X = 228 വി 100/80 = 285 285 × Y/100 = 313.5 Y = 313.5 × 100/285 = 110 10% വർധിപ്പിക്കണം


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