What is the salary of A, in a group of A, B, C, D and E whose average salary is ? 65780?
I. Total of the salaries of B and C is ? 88545.
II. Total of the salaries of D and E is ? 59020.

Correct Answer: If the Statement I alone is sufficient to answer the question but the Statement II alone is not sufficient

Explanation:

From Statement II,
Suppose the number be N.
N - 3N/5 = 90,
? 2N/5 = 90
N = 225

From Statement II,
N/4 = (25 x N)/100
? N/4 = N/4

So, Statement i is required.

Correct Answer: If the Statement II alone is sufficient to answer the question but the Statement I alone is not sufficient

Explanation:

From Statement II,
The ratio of their ages after 5 yr is 7 : 6
So, (6k + 5) / (5k + 5) = 7/6
? 36k + 30 = 35k + 35
? 36k - 35k = 35 - 30
? k = 5
? Age of anand = 6 x 5 = 30 yr
So, Statement II is alone sufficient.

Correct Answer:

Explanation:

We know that,
Speed of boat in still water
= (Speed upstream + Speed downstream)/2
From Statements I and II,
Speed = (6 + 4)/2 = 10/2 = 5 km/h
So, answer can be determined from both statements.

Correct Answer: If the data given in Statement I alone are sufficient to answer the question whereas the data given in Statement II alone are not sufficient to answer the question

Explanation:

Data given in Statement I alone are sufficient to answer the question

Correct Answer: if the data in either Statement I alone or in statement II alone are sufficient to answer the question

Explanation:

From Statement I,
R = (SI x 100) / (P x T)
? (1736 x 100)/(6200 x 2) = 14%

From Statement II,
1348.2 4500(1 + r/100)² - 4500
? 1348.2 + 4500 = 4500(1 + r/100)²
? 5848.2 = 4500((1 + r/100)²
? 5848.2/4500 = (1 + r/100)²
? 3249/2500 = (1 + r/100)²
? (57/50)² = (1 + r/100)²
? 1 + r/100 = 57/50
? r/100 = 57/50 - 1 = 7/50
? r = 7 x 100/50
? r = 14%

Both statement are alone sufficient.

Correct Answer: if either the Statement I alone or Statement II alone is sufficient to answer the question

Explanation:

From Statement I,
Selling price of watch = ? 15675
and the cost price of a watch = 15675 x 4/5
= ? 12540
? Profit = 15675 - 12540 = ? 3135
From Statement II,
Cost price of a watch
= 15675/100 + 25 x 100 = ? 12540
? Profit = 15675 - 12540 = ? 3135

Correct Answer: If either the Statement I alone or Statement II alone is sufficient to answer the question

Explanation:

Suppose the number be P.
From Statement I.
P x 2/5 = 1/2 x 204
? P x 2/5 = 102
? P = 102 x 5/2
? P = 255
From Statement II.
P x 20/100 = 51
? P = 51 x 100/20
? P = 255
Both statements alone are sufficient to answer the above question.

Correct Answer: If both Statement I and II together are needed to answer the question

Explanation:

From Statement I and II,
Length of plot = 375 m
Breadth of plot = 375/3 m = 125 m
Area of rectangular plot = Length x Breadth
Area of rectangular plot = 375 x 125 sq m = 46875 sq m

Correct Answer:

Explanation:

From Statement I,
Marks scored by Sunil = 288 and marks scored by Raman = 288 - 128 = 160
? Maximum marks = 160 x100/25 = 640
From Statement II,
Minimum passing Marks = 160 + 64 = 224
? Minimum passing percentage
= 224 x 100 /640 = 35%
Hence, the data in both the statements necessary to answer the question.

Correct Answer: if the data given in both the Statement I and II together are not sufficient to answer the question.

Explanation:

Using Statement I: The gender of F is not known So, we cannot says if F is granddaughter or grandson of B.
Using Statement II: The name of B has not even been mentioned. Using both statements together.