Percentage Questions

Multiple choice
  1. $16\%$
  2. $25\%$
  3. $32\%$
  4. $40\%$
  5. $52\%$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

64% of the population is employed. 48% of the total population are employed males. The percentage of employed females is 64% - 48% = 16% of the total population. The percentage of employed people who are female is (16 / 64) * 100 = 25%.

Multiple choice
  1. $11\%$ decrease
  2. $51\%$ increase
  3. $21\%$ decrease
  4. $31\%$ decrease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The time period of a simple pendulum is directly proportional to the square root of its length. If the length is decreased by 21%, the new length is 79% of the original length, making the new time period proportional to sqrt(0.79), which is approximately 0.89, representing an 11% decrease.