Area, Population and Official Languages MCQs with Answers & Explanations
Geography
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728 Questions• 546 Mins Practice• Updated for 2026 Competitive Exams
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Showing 441–460 of 728 MCQs
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441
What trend is indicated by the narrowing gender gap among young voters?
Correct Option
Option B
Explanation
Narrowing gender gap reflects increasing female voter participation in the electoral process.
442
Which statement best summarizes the passage on young voters?
Correct Option
Option C
Explanation
Passage emphasizes rising young voter numbers and their potential to alter election outcomes.
443
A company models its profit, P, in thousands of dollars, based on the number of products sold, x, in thousands, with the equation P(x) = x² − 3x + 2. Determine the number of thousands of products the company must sell to break even, where breaking even refers to achieving a profit of 0.
Correct Option
Option D
Explanation
Set P(x)=0: x²−3x+2=0 gives (x−1)(x−2)=0, so x=1 or x=2 thousand products.
444
In a right triangle with legs of a and b, and hypotenuse c, if a = 10 and b = 24, what is the value of c?
Correct Option
Option A
Explanation
c = √(10² + 24²) = √(100 + 576) = √676 = 26.
445
A car travels at varying speeds. If it covers 120 miles in the first 2 hours and 160 miles in the next 3 hours, what is its average speed over the entire trip?
Correct Option
Option D
Explanation
Total distance 280 miles over 5 hours; average speed = 280/5 = 56 mph.
446
An arithmetic sequence has a first term of a₁ = 3 and a common difference of d = −2. What is the 8th term of the sequence?
Correct Option
Option A
Explanation
a₈ = 3 + 7(−2) = 3 − 14 = −11.
447
A computer's price is reduced by 15% for a sale, and then an additional $50 off is applied. If the original price is $800, what is the final sale price?
Correct Option
Option B
Explanation
After 15% off: $800 × 0.85 = $680; minus $50 = $630.
448
Calculate the area of a trapezoid with bases of lengths 8 cm and 12 cm and a height of 5 cm.
Correct Option
Option A
Explanation
Area = ½(8+12)×5 = ½×20×5 = 50 cm².
449
What is the sum of the solutions for 2x² + 7x − 3 = 0?
Correct Option
Option C
Explanation
Sum of roots = −b/a = −7/2.
450
Given that logₓ 16 = 4 and logₓ 2 = y, find the value of y.
Correct Option
Option A
Explanation
logₓ16=4 ⇒ x⁴=16 ⇒ x=2; log₂2 = 1.
451
In a circle with radius 5 cm, what is the length of an arc subtending a central angle of 3π/4?
Correct Option
Option C
Explanation
Arc length = rθ = 5 × 3π/4 = 15π/4 ≈ 11.78 cm.
452
If tan θ = 3/4 and sin θ < 0, what is the value of cos θ?
Correct Option
Option C
Explanation
tan positive and sin negative places θ in QIII; cos θ = −4/5 for 3-4-5 triangle.
453
7/8 of 96 is?
Correct Option
Option D
Explanation
7/8 × 96 = 84. Computed; no official key - moderate confidence.
454
If f(x) = 2x² - 2x - 1, then f(-1) = ?
Correct Option
Option D
Explanation
f(-1) = 2(1) + 2 - 1 = 3. Computed; no official key - moderate confidence.
455
What is the 101st term of the sequence: 1, 4, 7, 10, …?
Correct Option
Option C
Explanation
AP with d=3: a101 = 1 + 100×3 = 301. Computed; no official key - moderate confidence.
456
In Piaget's theory of cognitive development, the key features of the stage of ________ are simple repetitive actions organized around the infant's own body.
Correct Option
Option D
Explanation
Primary circular reactions stage (sensorimotor). Computed from psychology content; no official key - moderate confidence.
457
People are likely to invest less effort in a task when they are working with others. What is this phenomenon called?
Correct Option
Option B
Explanation
Standard definition of social loafing. No official key - high confidence.
458
Which of the following relates to disorders in comprehension or production of speech?
Correct Option
Option D
Explanation
All listed relate to speech/language disorders or areas. No official key - moderate confidence.
459
Which Scale has an absolute zero at the point of origin?
Correct Option
Option D
Explanation
Ratio scale has a true absolute zero. No official key - high confidence.
460
If |2x - 3| = 7, which of the following could be the value of x?
Correct Option
Option C
Explanation
x = 5 or x = -2. Computed; no official key - high confidence.
