Question
The population of a town grows by 25% in the first year,
declines by 20% in the second year, and rises by 30% in the third year. What is the total percentage change in the population over 3 years?Solution
Let the initial population be 100.  1st year: Population after a 25% increase = 125.  2nd year: Population after a 20% decrease = 100.  3rd year: Population after a 30% increase = 130.  Overall percentage change = (130 - 100) / 100 × 100 = 30%.  The overall percentage change is an increase of 30%.
Read the given statements and conclusions carefully. Decide which of the given conclusions is true based the given statements.
Statement: Canad...
Statements: X > T, F = Q ≥ E < T
Conclusions: X < E, X = E
Statements:Â Â Â Â Â Â K @ L; M & O, N % L, K $ O
Conclusions:Â Â Â Â Â I. O @ LÂ Â Â II. M @ LÂ Â Â Â Â Â Â Â Â III. K # N
...Infant jaundice is yellow discoloration of new born baby's skin and eyes which occurs because the baby's blood contains an excess of a yellow pigment c...
In a party, every couple has at least one child (all minors) with them and there are 12 couples. Which one of the following inferences would be possible?
Many pathogens that cause foodborne illnesses are unknown. Food contamination can occur at any stage from farm to plate. Since most cases of food poison...
Statements: B < I ≥ E > K; Z ≤ N = K
Conclusions:
I. Z < E
II. N ≤ I
III. B > N
Statements: X > V ≥ A = I ≤ R > G = H ≤ Q
Conclusion
I: Q ≤ A
II: Q > A
Statements: H ≤ L< S ≤ K , S = G ≥ I > Q, U ≤ B < N = C = I
Conclusions: I. B < S II. H < Q
In the question below some statements are given followed by three conclusions I, II and III. You have to take the given statements to be true even if t...
Relevant for Exams:
