Exams Questions and Answers

Q:

Determine the value of “s” for which the equation 5x + 35 = 60x + s has infinite number of solutions.

A) 420	B) 440
C) 460	D) 480

Answer & Explanation Answer: A) 420

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is

A) 30	B) 300
C) 60	D) 10

Answer & Explanation Answer: B) 300

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

9 2570

Q:

Which discovery is attributed to Phoebus Levene?

A) identification of ribose and deoxyribose	B) recognition of RNA as DNA’s messenger
C) extraction and observation of DNA	D) construction of an accurate DNA model

Answer & Explanation Answer: A) identification of ribose and deoxyribose

Explanation:

Phoebus Levene was an organic chemist in the early 1900's. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA. He is who studied the structure and function of nucleic acids.

The discovery of Identification of Ribose and Deoxyribose is attributed to Phoebus Levene.

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Filed Under: Famous Personalities
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 2570

Q:

The area of a circular cricket ground is 24.64 hectares. Find the cost of making rope boundary at the rate of Rs. 5.40 per metre.

A) Rs. 9,600	B) Rs. 9,504
C) Rs. 9,802	D) Rs. 9,876

Answer & Explanation Answer: B) Rs. 9,504

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The value of $1 + 2^{2} + 2^{3} + 2^{4} + . . . + 2^{9}$ is

A) 255	B) 511
C) 1021	D) 2047

Answer & Explanation Answer: C) 1021

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams , CAT

9 2569

Q:

How many Nucleotides make up a Codon?

A) 3	B) 4
C) 5	D) 6

Answer & Explanation Answer: A) 3

Explanation:

3 Nucleotides make up a Codon.

The nucleotide triplet that encodes an amino acid is called a codon.

Each group of three nucleotides encodes one amino acid.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

In the thermite process, the reducing agent is

A) Chlorine	B) Aluminium
C) Silicon	D) Iron

Answer & Explanation Answer: B) Aluminium

Explanation:

In the thermite process, the reducing agent is Aluminium.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

1 2568

Q:

Selling price of a fan is Rs 4644. If profit percentage is 29%, then what is the cost price (in Rs) of fan?

A) 5900	B) 3500
C) 3800	D) 3600

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