Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

If the elderly percentage in a region remains constant while the absolute number of elderly people rises by 25 percent, what is the most logical conclusion about total population?

Answer and explanation

Correct answer: Total population must also have risen by about 25 percent

An age-group percentage is calculated as the number in that group divided by total population. Let the elderly share be a fixed positive fraction, represented by \(E/T\). If the elderly number rises by 25 percent, the new number is \(1.25E\). For the fraction \(E/T\) to remain unchanged, the total must also become \(1.25T\), or rise by 25 percent.

Therefore, under the stated conditions, total population also increased by about 25 percent; in fact, with an exactly constant share, the increase is exactly 25 percent. The other choices contradict this relationship or add information not given. Hence option A is the logical conclusion.

Related tags

Elderly PopulationPercentage ShareTotal PopulationAge CompositionAge StructurePopulation CompositionGeographyClass 12 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.