Question : 20% of the inhabitants of a village had died of malaria, a panic set in, during which 30% of the remaining inhabitants left the village. The population was then reduced to 12,000. What was the number of inhabitants initially (Consider integral part only)
Option 1: 21000
Option 2: 21428
Option 3: 21500
Option 4: 30428
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Correct Answer: 21428
Solution : Given, 20% of the inhabitants of the village died of malaria And, 30% of the inhabitants left the village Let the inhabitants initially be P. ⇒ Reduced = P × (100 - 20%) × (100 - 30%) ⇒ 12000 = P$×\frac{80}{100}×\frac{70}{100}$ ⇒ P = $\frac{12000×100×100}{70×80}$ ⇒ P = 21428 Hence, the correct answer is 21428.
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Question : An army lost 10% of its men in a war. Afterwards, 10% of the remaining soldiers died due to disease, and 10% of the remaining were declared disabled. Consequently, the strength of the army was reduced to 7,29,000 active men. What was the original strength of the army?
Option 1: 15,00,000
Option 2: 10,00,000
Option 3: 12,00,000
Option 4: 11,00,000
Question : Study the given pie chart and answer the question that follows. The total population of these six villages is 100%.
The population of village D in 2020 was 10,500. What was the population of Village A in 2020?
Option 1: 15,570
Option 2: 15,750
Option 3: 17,550
Option 4: 7,875
Question : A village lost 12% of its goats in a flood and 5% of the remainder died from diseases. If the number left now is 8360, what was the original number before the flood?
Option 1: 1000
Option 2: 10,000
Option 3: 1,00,000
Option 4: 8360
Question : The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
I will spend / my rest of remaining / life in my / native village.
Option 1: my rest of remaining
Option 2: life in my
Option 3: native village
Option 4: I will spend
Question : The birth rate measures the number of birth during a year per
Option 1: 100 population
Option 2: 1000 population
Option 3: 10000 population
Option 4: 100000 population
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