Hello and welcome to exampundit. Here is a set of Quant Quiz on Series and Data Sufficiency.
In these questions, a question is given followed by information in three statements. You have to consider the information in all the three statements and decide the information in which of the statement(s) is not necessarily required to answer the question and therefore can be dispensed with. Indicate your answer accordingly.
- How many students from Institute ‘A’ got placement?
I. Number of students studying in Institutes A & B are in the ratio of 3 : 4 respectively.
II. Number of students who got placement from Institute B is 120% of the number of students who got placement from Institute A.
III. 80% of the students studying in Institute B got placement.
(a) None of the statements can be dispensed with
(b) Only I
(c) Only II
(d) Anyone of the three
(e) Question cannot be answered even with the information in all three statements
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Option: E
Explanation: From statement I,
Let the number of students in the institutes A and B be 3x and 4x respectively. However we get no conclusive answer by using data given in all the statements.
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- What is the monthly income of Mr. X?
I. Mr. X spends 85% of his income on various items and remaining amount is saved.
II. Monthly saving of Mr. X are ₹ 4,500/.
III. Out of the total money spent by Mr. X in a month, one-fifth is spent on food and remaining amount of ₹20, 400 on other items.
(a) Only II
(b) Only III
(c) Either II or III
(d) Question cannot be answered even with the information in all three statements
(e) None of these
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Option: C
Explanation:
From statements I and II, Let Mr. X’s monthly income = ₹ x. Then
15 × x/100 = 4500
So, x = 4500×100/15 = ₹30000
From statements I and III,
x × 4/5 × 85/100 = 20400
So, x = 20400 × 5 × 100/4 × 85
= ₹ 30000
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- What is Suchitra’s present age?
I. Suchitra’s present age is double the age of her son.
II. Ratio between present ages of Suchitra and her mother is 2 : 3 respectively.
III. Four years hence the ratio between Suchitra’s age and her son’s age will be 13 : 24 respectively.
(a) Only II
(b) Only III
(c) Either I or II only
(d) Either II or III only
(e) None of these
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Option: A
Explanation:
From Statements I and III, Let Suchitra’s son’s
present age be x years.
So, Suchitra’s present age
= 2x years
After 4 years,
2x+4/x+4 = 13/24
We can get the required answer by this relation.
So statement II is not required.
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- What is Neeta’s share in the profit earned at the end of 2 years in a joint business run by Neeta, Seeta and Geeta?
I. Neeta invested ₹ 85,000/ to start the business.
II. Seeta and Geeta joined Neeta’s business after six months investing amounts in the ratio of 3 : 5 respectively.
III. Total amount invested by Seeta and Geeta is ₹ 2.3 lakhs
(a) Only II
(b) Only III
(c) Only either II or III
(d) Information in all three statements is required for answering the question.
(e) Question cannot be answered even with the information in all three statements.
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Option: D
Explanation:
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- What is the labelled price of the article?
I. Cost price of the article is ₹ 500/.
II. Selling price after offering 5% discount on the labelled price is ₹ 608/.
III. Profit earned would have been 28% if no discount was offered.
(a) Only I (b) Only III
(c) Only II & III (d) Only I and III
(e) Only I and II
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Option: D
Explanation:
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What should come in place of the question mark (?) in the following number series ?
- 104 109 99 114 94 ?
(a) 69
(b) 124
(c) 120
(d) 78
(e) None of these
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Option: E
Explanation:
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- 980 392 156.8 ? 25.088 10.0352
(a) 65.04
(b) 60.28
(c) 62.72
(d) 63.85
(e) None of these
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Option: C
Explanation:
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- 14 16 35 109 441 ?
(a) 2651
(b) 2205
(c) 2315
(d) 2211
(e) None of these
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Option: D
Explanation:
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- 1331 2197 4913 6859 ? 24389
(a) 12167
(b) 13824
(c) 9261
(d) 15625
(e) None of these
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Option: A
Explanation:
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- 3600 725 150 35 12 ?
(a) 8
(b) 7.4
(c) 10.5
(d) 10
(e) None of these
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Option: B
Explanation:
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Regards
Team EP