Question
A girl found the answer for the question “subtract
the sum 1/2 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of error in her answer was?Solution
Correct answer = 1 - (1/2+1/8) = 1 - ((4+1)/8) ⇒ 1 - 5/8 = 3/8 = 0.375 Difference in answer = 1.5 - 0.375 = 1.125 Required percentage = 1.125/0.375 × 100 = 300 %
A sphere is inscribed in a cylinder. The radius of the cylinder is 7 cm. What is the volume of the sphere?
Let f(x) = (3x–4)/(2x+1). Solve f(f(x)) = x.
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A group of 20 boys can complete a task in 15 days. Similarly, 24 girls can finish the same task in 20 days. If the ratio of the e...
24, 13, ?, 29, 117, 937
The following table shows the monthly sales of a company for the first five months of the year:
Which of the following software is also known as the end-user program?
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Quantity I: If the t...
If 'P' represents the largest single-digit prime number, determine the fourth proportional to the numbers (P + 3), (P - 2), and (P + 5).
