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Q:

Energy is measured in units called

A) Newtons	B) Watts
C) Joules	D) Ohm/mtr

Answer & Explanation Answer: C) Joules

Explanation:

Energy is measured in units called Joules.

Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.

1 Joule = 10⁷ ergs or 0.7377 foot-pounds.

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Filed Under: General Science
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Q:

Square units 13 by 9 of an office area is

A) 97	B) 117
C) 107	D) 127

Answer & Explanation Answer: B) 117

Explanation:

Square units 13 by 9 of an office means office of length 13 units and breadth 9 units.

Now its area is 13x 9 = 117 square units or units square.

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Filed Under: Area
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Q:

With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. Find the length of the total journey?

A) 70 kms	B) 60 kms
C) 45 kms	D) 30 kms

Answer & Explanation Answer: A) 70 kms

Explanation:

Let the time taken by train be 't' hrs.

Then,

$40 t = 35 (t + \frac{15}{60})$

40t = 35t + 35/4

t = 7/4 hrs

Therefore, Required length of the total journey d = s x t

= 40 x 7/4

= 70 kms.

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Filed Under: Time and Distance
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Q:

DNA is made of repeating units called

A) Nucleotides	B) Ribozomes
C) Peptides	D) Aminoacids

Answer & Explanation Answer: A) Nucleotides

Explanation:

DNA is a very long chain polymer made up of thousands of repeating units called nucleotides.

Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base.

The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.

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Filed Under: Biology
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Q:

On a bank reconciliation, deposits in transit are

A) added to the book balance	B) added to the bank balance
C) deducted from the book balance	D) None of the above

Answer & Explanation Answer: B) added to the bank balance

Explanation:

A deposit in transit is cash (currency, coins, checks, electronic transfers) that a company has received and is rightfully reported as Cash on its balance sheet, but does not appear on the bank statement until a later date.

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Filed Under: Accounts Receivable
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Q:

What is the product of a number and its reciprocal?

A) 0	B) 1
C) -ve of the number	D) the number itself

Answer & Explanation Answer: B) 1

Explanation:

The product of a number and its reciprocal is always equals to 1.

For Example : Let the number be 4.

Now, its reciprocal is 1/4

Hence, required product = 4 x 1/4 = 1.

Now, take the number as -15.

Then its reciprocal is -1/15

Required product = -15 x -1/15 = 1.

Hence, the product of a number and its reciprocal is 1.

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Filed Under: Arithmetical Reasoning
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Q:

The inherited traits of an organism are controlled by

A) DNA	B) Enzymes
C) Nucleotides	D) RNA

Answer & Explanation Answer: A) DNA

Explanation:

The inherited traits of an organism are controlled by DNA molecules.

The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.

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Filed Under: Biology
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Q:

Mohan spends 23% of an amount of money on an insurance policy, 33% on food, 19% on children’s education and 16% on recreation. He deposits the remaining amount of Rs. 504 in bank. How much amount does he spend on food and insurance policy together?

A) Rs. 2326	B) Rs. 5876
C) Rs. 1741	D) Rs. 3136

Answer & Explanation Answer: D) Rs. 3136

Explanation:

Let total amount = Rs. P

Total expenditure = (23 + 33 + 19 + 16)% of P = 91%ofP

Remaining money = (100 - 91)% of P = 9% of P

But given in the question that,

9% of P = 504

9p/100 = 504

=> P = 50400/9

=> P = Rs. 5600

Required money spent on Food & Insurance = 23 + 33 %

= 56% of 5600

= 56 x 5600/100 = 56 x 56 = Rs. 3136

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Filed Under: Percentage
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