MP Police SI (Technical) Mock Test - 1 - MP Police SI MCQ

Given:

Time = 5 years

SI = 

Where P is principal, R is rate of interest and T is time.

Sum doubles itself:

So, SI = 2P – P = P

⇒ P = 

⇒ R = 20%

So, rate of interest = 20%

In RNA (Ribonucleic acid), thymine is replaced by uracil.

This ribonucleic acid acts as a template for the synthesis of proteins, where it transforms the genetic material from the genes to protein synthesis components, to form the amino acids.The nitrogenous bases are purines and pyrimidines. The purines are adenine and guanine. The pyrimidines are thymine and cytosine. In RNA, the thymine is replaced by uracil. Uridylic acid is formed by the combination of uracil as a nitrogenous base, ribose sugar, and triphosphate. It is mainly found in RNA. It is an ester of phosphoric acid with the nucleoside uridine.

The meter bridge works on the principle of Balanced Wheatstone bridge and the length of conductor is directly proportional to the resistance.

Wheatstone Bridge: In the below diagram, BD is Wheatstone Bridge when there is no current across it. This happens when:

Meter Bridge: It is an electrical instrument used to measure an unknown resistance.

It works on two principles, one is Wheatstone Bridge, and the other is 'direct proportionality relationship between length and resistance of a wire.'

Working of meter Bridge: AC is long resistance wire 100 cm long. Varying the position of tapping point B, the bridge is balanced.

Bridge Balanced means the galvanometer is showing zero resistance and the condition satisfying Wheatstone Bridge.

If B is the balanced position of bridge AB = l, BC (100 – l) so that,

Also, by condition of Wheatstone Bridge

Here, S is unknown resistance that can be measured with the help of the meter bridge. 

Therefore, we can say that the meter bridge works on the principle of Wheatstone Bridge and direct proportionality relationship between length and resistance of a wire.

Given:

Principal (P) Rs.

Rate of Interest (R)

Time (t) years

Formula:

According to the question,

The amount payable after years,

Rs.

The amount payable after years is Rs. .

Given :

Calculations:

Multiply the numerator and denominator by 2

We know that,

Putting the given value of and

The value of is 3 .

Given:

The Sum of money becomes 5 times of itself in 16 years

(i)

Where principal

rate

time

(ii)

Where, Amount

simple interest

Let the principal be .

For 16 years,

The rate of interest is .

Friedel-Craft reaction is carried out by the generation of a carbocation but in chlorobenzene, bromobenzene, chloroethene, lone pair of halogen are delocalized with π bonds to attain double bond character. According to the Friedel-Crafts reaction, Isopropyl chloride can be used as the halide component.

The compounds that contain carbon are known as organic compounds. Most abundant organic compound on earth is cellulose.

Carbohydrates are grouped into monosaccharides, disaccharides and polysaccharides. Cellulose, a storage form of carbohydrate found in plants that humans cannot digest, is among the most plentiful of the carbohydrates worldwide. Cellulose is a polymer of linear polysaccharide, with several monosaccharide glucose units. The acetal linkage is beta which distinguishes it from starch. Human beings are unable to digest cellulose because there are no sufficient enzymes for breaking down beta-acetal linkages.

is the only $\sigma$-donor ligand while are -acceptor ligands.

Let,

By comparing the equation y² - 2y - 1 = 0 with the standard quadratic equation ax² + bx + c = 0. We get, a = 1, b = -2 and c = - 1

So,

Given-

A sum of money becomes times in 6 years when invested at compound interest.

Let the sum

Amount

Time years

According to the formula-

where is rate

-------- EQUATION (1)

When the sum of money is invested for years,

New amount

From EQUATION (1),

The sum of money becomes times when it is invested for years.

Enzymes having slightly different molecular structure but performing identical activity are isoenzymes. Isoenzymes refer to those enzymes from different genes that process or catalyse the same reaction. Isoenzyme of an enzyme differ from each another in their amino acid sequence, molecular weight, immunological and electrophoretic behaviours. The presence of isozymes helps in the process of metabolism which is required for the purpose of meeting the particular needs of a biological function.

The sum may be 2, 3, 5, 7, 11

⇒ 2 can be obtained in 1 way = (1, 1)

⇒ 3 can be obtained in 2 ways = (1, 2), (2, 1)

⇒ 5 can be obtained in 4 ways = (1, 4), (2, 3), (3, 2), (4, 1)

⇒ 7 can be obtained in 6 ways = (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1)

⇒ 11 can be obtained in 2 ways = (5, 6), (6, 5)

∴ Total favorable ways = 1 + 2 + 4 + 6 + 2 = 15

Total outcomes = 6² = 36

P (E)

∴ The required probability is .

Given-

and had money in the ratio .

Let the share of

Let the share of

According to question,

gave to .

New share of

New share of

Money which had initially

Given:

The cost price of 45 masks = Cost price of 30 masks

Formula used:

Profit = Selling price - Cost price

Profit percentage

Let the cost price be CP.

Let the selling price be SP.

Profit

Profit percentage

The gain percentage is .

Given,

The area of a rectangle is m.

One side is m.

As we know,

Area of Rectangle Length breadth

Substituting the given value, we get,

breadth

breadth

breadth

m breadth

As we know,

Perimeter of rectangle

On substituting the value we get,

Perimeter of rectangle

Or

Perimeter of rectangle m

So, the perimeter of rectangle is m.

Given:

Average power transmitted, ,

Wavelength,

The average power is given by,

Since the average power transmitted by two waves in a cross section is equal.

Or,

The relationship between angular frequency and wavelength is inversely proportional to each other, therefore,

From equation ,

Now, the pressure amplitude,

यहाँ,

Ni (28) and both have two unpaired electrons. and are strong field ligands and thus, unpaired electrons get paired. Thus, and are diamagnetic. While Cl as a weak field ligand, so is paramagnetic.

Given,

and

As we know

Given:

Rate of interest at which A borrows per annum

Rate of interest at which B borrow per annum

Time years

We know that,

Simple interest

Let the sum borrowed be Rs. .

Simple interest for A

Simple interest for B

Now,

Rs.

Sum borrowed is Rs. .

One individual purchases a large number of tickets at a discounted price of Rs. 0.75 each. For Rs. 7,500 should he purchase tickets to achieve a 10% chance of winning a third prize.

Given:

Ratio of numbers

Increment in number

Decrement in number

We know that,

If is distributed between and in the ratio of , then and

To convert any ratio to an exact value, we should have to multiply any constant value.

Let, numbers be and respectively.

Now, number of

number

Numbers are and

The difference of numbers

Given:

Ratio of time taken by and

Then,

B will complete the work in days.

Given,

The radius of a sphere is increased by decimeter (dm), then its surface area increases by dm.

As we know,

The surface area of sphere

The volume of sphere

Where radius and

according to the question,

dm

Now,

Volume

dm

The volume of the sphere is dm.

Given:

120 men consume 720 kg of rice in 30 days.

Formula used :

Where,

Initial Men,

Initial day

Initial hour

Work by initial men

Final men

Final day

Final hour

Work by final men

Calculations :

Now applying the formula,

In 15 days 90 men can consume .

Glycogen is a polymer of glucose. Glycogen is a substance which is deposited in body tissues in the form of carbohydrates and it is broken down in the form of glucose which provides an instant source of energy to muscles by the process of glycolysis. It is accumulated in response to insulin and it is broken down into glucose in response to glucagon and it is mainly stored in the liver and the muscles. It provides the body with an instant source of energy when the blood glucose level decreases. It maintains blood glucose level and it is really important because glucose is the only fuel used by the brain virtually.

A box contains round discs, square-shaped discs and triangular discs.

Probability

Total number of discs

Total number of triangular discs

The probability that in first pass a triangular disc is attracted

The first disc is kept aside and one square disc is kept inside.

The probability that in second pass a triangular disc is attracted

Required Probability