Selected MCQ

Current Question
The value of √6400 ____.
  • A. 70
  • B. 75
  • C. 80
  • D. 85
Correct Answer: C
Explanation:
√6400 = 80.
Related Question 1
Value of the plant depreciates 10% annually. Find the present value after 2 years, given the initial amount.
  • A. Rs. 8000
  • B. Rs. 10000
  • C. Rs. 18000
  • D. Rs. 8100
Correct Answer: D
Explanation:
Value = P(0.9)².
Related Question 2
True discount on a bill due 9 months later at 16% is Rs. 189. Find the bill value.
  • A. Rs. 1386
  • B. Rs. 1764
  • C. Rs. 1575
  • D. Rs. 2268
Correct Answer: B
Explanation:
Apply the TD formula.
Related Question 3
If 2x² = 50, value of x is ____.
  • A. 5
  • B. ±5
  • C. 10
  • D. ±10
Correct Answer: B
Explanation:
x² = 25 → x = ±5.
Related Question 4
If 5x = 125, value of x is ____.
  • A. 20
  • B. 25
  • C. 30
  • D. 35
Correct Answer: B
Explanation:
x = 125/5 = 25.
Related Question 5
In an office, 6400 employees and 65% are males. How many females?
  • A. 1040
  • B. 2240
  • C. 3120
  • D. 4160
Correct Answer: B
Explanation:
Females = 35% of 6400 = 2240.