832.58 - 242.31 = 779.84 -?

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832.58 - 242.31 = 779.84 -?

A179.57

B199.57

C295.05

DNone of these

Nithin K ? Apr 20 '2018 at 20:8

Correct Answer: D [None of these]

Explanation:

832.58 - 242.31 = 779.84 - ?

=> 590.27 = 779.84 -?

=> ? = 779.84 - 590.27

= 189.57

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The value of log 0.01 (1000) is

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$$\text{The value of } log_{(0.01)} (1000)\text{ is}$$

A$$\frac{1}{3}$$

B$$-\frac{1}{3}$$

C$$\frac{3}{2}$$

D$$-\frac{3}{2}$$

Nithin K ? Apr 20 '2018 at 19:59

Correct Answer: D [\(-\frac{3}{2}\)]

Explanation:

\(log_{0.01}{1000} = \frac{\text{log 1000}}{\text{log 0.01}}\)

\(=\frac{\text{log }10^3}{\text{log }10^{-2}}\)

\(=\frac{3\text{ log 10}}{-2\text{ log 10}}\)

\(=-\frac{3}{2}\)

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Which of the following is present In hard water?

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Which of the following is present In hard water?

ACalcium

B Aluminum

CSodium

DChIorine

Nithin K ? Apr 19 '2018 at 22:47

Correct Answer: A [Calcium]

Explanation:

The hard water consists of Calcium and Magnesiurn (lnsoluble) salts.

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Which of the following is a non ferrous metal?

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Which of the following is a non ferrous metal?

ACobalt

BAluminium

CNickel

DIron

Nithin K ? Apr 19 '2018 at 22:41

Correct Answer: B [Aluminium]

Explanation:

Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), non-magnetic property or resistance to corrosion (e.g. zinc). Some non-ferrous materials are also used in the iron and steel industries.

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Find the odd man out: 1. 4, 9, 16. 20, 36, 49

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Find the odd man out:
1. 4, 9, 16. 20, 36, 49

A1

B9

C20

D49

Nithin K ? Apr 19 '2018 at 21:19

Correct Answer: C [20]

Explanation:

Remaining numbers are squares of 1,2,3,4,6,7

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Which matter is used In storage batteries?

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Which matter is used In storage batteries?

ACopper

BLead

CAlluminium

DZinc

Nithin K ? Apr 19 '2018 at 19:10

Correct Answer: B [Lead] 

Explanation:

lead. …is in the manufacture of storage batteries. It is used in ammunition (shot and bullets) and as a constituent of solder, type metal, bearing alloys, fusible alloys, and pewter.

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The chemical name of table salt

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The chemical name of table salt

Apotassium chloride

Bsodium chloride

Ccalcium chloride

D sodium hyposulphate

Nithin K ? Apr 18 '2018 at 7:16

Correct Answer: B [sodium chloride]

Explanation:

The Chemical name of table salt  Sodium Chloride (NaCl).

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