The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y ?
A.
2010
B.
2011
C.
2012
D.
2013
Answer: Option B
Explanation:
Suppose commodity X will cost 40 paise more than Y after z years.
Then, (4.20 + 0.40z) - (6.30 + 0.15z) = 0.40
0.25z = 0.40 + 2.10
z =
2.50
=
250
= 10.
0.25
25
X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.
There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
A.
20
B.
80
C.
100
D.
200
Answer: Option C
Explanation:
Let the number of students in rooms A and B be x and y respectively.
The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?
A and B entered into partnership with capitals in the ratio 4 : 5. After 3 months, A withdrew of his capital and B withdrew of his capital. The gain at the end of 10 months was Rs. 760. A's share in this profit is:
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
7.
What is R's share of profit in a joit venture?
I.
Q started business investing Rs. 80,000.
II.
R joined him after 3 months.
III.
P joined after 4 months with a capital of Rs. 1,20,000 and got Rs. 6000 as his share profit.
A.
All I, II and III
B.
I and III only
C.
II and III only
D.
Even with all I, II and III, the answer cannot be arrived at
E.
None of these
Answer: Option D
Explanation:
From I, II and III, we get P : Q : R = (120000 x 8) : (80000 x 12) : (x x 9).
Since R's investment is not given, the above ratio cannot be give.
A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and
Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
Give answer(E) if the data in both Statements I and II together are necessary to answer the question.
13.
What is the volume of a cube?
I.
The area of each face of the cube is 64 square metres.
II.
The length of one side of the cube is 8 metres.
A.
I alone sufficient while II alone not sufficient to answer
B.
II alone sufficient while I alone not sufficient to answer
C.
Either I or II alone sufficient to answer
D.
Both I and II are not sufficient to answer
E.
Both I and II are necessary to answer
Answer: Option C
Explanation:
Let each edge be a metres. Then,
I. a2 = 64 a = 8 m Volume = (8 x 8 x 8) m3 = 512 m3.
Loading Test...
0.25z = 0.40 + 2.10
X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.
of his capital and B withdrew 
of his capital. The gain at the end of 10 months was Rs. 760. A's share in this profit is:
CD.