100 * 10 - 100+2000 / 100 =?

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$$100 \times 10 - 100+ \frac{2000}{100} =?$$

A29

B780

C920

D979

Nithin K ? Apr 18 '2018 at 7:9

Correct Answer: C [920]

Explanation:

\(100 \times 10 - 100+ \frac{2000}{100} =?\)

According to BODMAS Rule,

\(100 \times 10 - 100+ 20 =?\)

\(1000 - 100+ 20 =?\)

\(1000 - 120 =?\)

= 920

Note: 

BODMAS Rule is

Step 1: Parts of the expression enclosed in ‘Brackets’ must be solved first. Inside the brackets, once again BODMAS rules apply! Just like a Russian Doll!

Step  2: The mathematical operators ‘of’ and ‘order’ must be solved next. ‘Of’ means part of and is solved by substituting with a multiplication sign. ‘Order’ is the same as exponent. Powers are solved after brackets. Powers also include roots.

Step 3: Next, the parts of the equation that contain ‘Division’ and ‘Multiplication’ are calculated.

Step 4: Last but not least, the parts of the equation that contain ‘Addition’ and ‘Subtraction’ should be calculated.

 

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Who invented the doctors thermometer?

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Who invented the doctors thermometer?

AFahrenheit

BEdIson

CGalileo

DNone of these

Nithin K ? Apr 18 '2018 at 6:53

Correct Answer: A [Fahrenheit]

Explanation:

In 1714 Dutch scientist and inventor Daniel Gabriel Fahrenheit invented the first reliable thermometer, using mercury instead of alcohol and water mixtures. In 1724 he proposed a temperature scale which now (slightly adjusted) bears his name.

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138.009 + 341.981 - 146.305 = 123.6 +?

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138.009 + 341.981 - 146.305 = 123.6 +?

A120.085

B120.85

C220.085

D None of these

Nithin K ? Apr 17 '2018 at 21:30

Correct Answer: D [ None of these]

Explanation:

123.6 + ?

= 138.009 + 341.981 - 146.305

=> 123.6 +? = 479.99 - 146.305

=> 123.6 + ? = 333.685

? = 333. 685 - 123.6 = 210.085

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If (x:y)=2: 1,then(x^2-y^2): (x^2+ y^2) is

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$$If (x:y)=2: 1,then(x^2-y^2): (x^2+ y^2) is: $$

A3:5

B5:3

C1:3

D3:1

Nithin K ? Apr 17 '2018 at 21:20

Correct Answer: 3:5

Explanation:

\(\frac{x}{y}=\frac{2}{1} \text{ (Given)}\)

\(\text{Expression} = \frac{x^2-y^2}{x^2+y^2} = \frac{\frac{x^2}{y^2}-1}{\frac{x^2}{y^2}+1}\)

\(=\frac{(\frac{2}{1})^2-1}{(\frac{2}{1})^2+1}= \frac{4-1}{4+1}=\frac{3}{5}\)

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If the difference of the squares of two numbers is 580 and their sum Is 58. then the difference between the numbers will be

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If the difference of the squares of two numbers is 580 and their sum Is 58. then the difference between the numbers will be

A10

B12

C29

D16

Nithin K ? Apr 16 '2018 at 20:47

Answer is : A [10]

Explanation:

\(x^2-y^2=580\)

and \(x +y=58\)

\(\therefore x-y= \frac{x^2-y^2}{x+y}=\frac{580}{58}=10\)

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LTTE is a militant organisation of

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LTTE is a militant organisation of

ASri Lanka

BBangladesh

CNepal

DPakistan

Nithin K ? Apr 16 '2018 at 20:39

Correct Answer: A [Sri Lanka]

Explanation:

LTTE is a militant organisation of Srilanka. Its chief was Prabhakaran.

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The British government report is called

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The British government report is called

ABlue Book

BRed Book

CYellow Book

DGreen Book

Nithin K ? Apr 16 '2018 at 20:34

Correct Answer: A[Blue Book]

Explanation:

UK National Accounts, The Blue Book time series dataset. Records and describes economic activity in the UK and as such is used by government, banks, academics and industries to formulate the economic and social policies and monitor the economic progress of the UK.

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