Maths-
General
Easy
Question
Joey scored 75, 80,76,85 and 90 in five subjects out 100 each. Calculate his percentage?
- 89%
- 80%
- 80.3%
- 81.2%
The correct answer is: 81.2%
Percent = sum of marks scored / total marks x 100
= 75+80+76+85+90 / 500 x 100
= 406/500 x 100
= 81.2%
Related Questions to study
Maths-
Find the number by which 7:21 is multiplied to make it equivalent to 84 : 252.
Find the number by which 7:21 is multiplied to make it equivalent to 84 : 252.
Maths-General
Chemistry-
the reagents used in the conversion are:
the reagents used in the conversion are:
Chemistry-General
Chemistry-
Which is the correct order of acidity from weakest to strongest acid for these compounds:
I) CF3CH2OH
II) 
III) 
IV) 
Which is the correct order of acidity from weakest to strongest acid for these compounds:
I) CF3CH2OH
II)
III)
IV)
Chemistry-General
Chemistry-
Two aliphatic aldehydes P and Q react in the presence of aqueous K2CO3 to give compound R, which upon treatment with HCN provides compound S On acidification and heating S gives the product shown below:
The compound P and Q respectively are :
Two aliphatic aldehydes P and Q react in the presence of aqueous K2CO3 to give compound R, which upon treatment with HCN provides compound S On acidification and heating S gives the product shown below:
The compound P and Q respectively are :
Chemistry-General
Chemistry-
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
The structures of compounds J, K and L, respectively, are:
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
The structures of compounds J, K and L, respectively, are:
Chemistry-General
Chemistry-
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
The structure of compound I is:
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
The structure of compound I is:
Chemistry-General
Chemistry-
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
Compound H is formed by the reaction of:
A tertiary alcohol H on acid catalysed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only M
Compound H is formed by the reaction of:
Chemistry-General
Chemistry-
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
Which of the following' compounds gives internal crossed Cannizzaro's reaction?
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
Which of the following' compounds gives internal crossed Cannizzaro's reaction?
Chemistry-General
Chemistry-
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
The aldehyde having 
-hydrogen which gives Cannizzaro's reaction is:
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
The aldehyde having -hydrogen which gives Cannizzaro's reaction is:
Chemistry-General
Chemistry-
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
The aldehyde which shows Cannizzaro's reaction is:
Aldehydes undergo disproportionation reaction in presence of aqueous NaOH Simultaneous oxidation and. reduction 'of a compound is scientifically called as disproportionation.
Aldehydes having no a-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalization.
The reaction may be represented as:
Intramolecular Cannizzaro's reaction is also possible.
The aldehyde which shows Cannizzaro's reaction is:
Chemistry-General
Chemistry-
The final product (III) obtained in the reaction, 
is:
The final product (III) obtained in the reaction, is:
Chemistry-General
Chemistry-
Tishchenko reaction of 
gives:
Tishchenko reaction of gives:
Chemistry-General
Chemistry-
Identity the product(s):
Identity the product(s):
Chemistry-General
Chemistry-
In the reaction,
X is:
In the reaction, X is:
Chemistry-General
Maths-
Daniel invested in stock market. The price of one share of stock fell 12 dollars each day for 8 days. How much money did Daniel lose after 8 days
Daniel invested in stock market. The price of one share of stock fell 12 dollars each day for 8 days. How much money did Daniel lose after 8 days
Maths-General
