Maths-
General
Easy
Question
Weight (in kg) of 5 learners of grade VI is recorded as : 45, 50 ,44, 36,40. What is the mean weight.
- 45kg
- 43kg
- 42kg
- 44kg
The correct answer is: 43kg
Mean = (45+50+44+36+40) / 5 = 215/5 = 43kg
Related Questions to study
Maths-
What is the lateral surface area of cube with side measure of 3m.
What is the lateral surface area of cube with side measure of 3m.
Maths-General
Maths-
Convert 7/4 into decimals whole number in math fractions-of-whole-numbers
Convert 7/4 into decimals whole number in math fractions-of-whole-numbers
Maths-General
Maths-
Write 34 in roman numerals
Write 34 in roman numerals
Maths-General
Maths-
Linto and Alisa are sharing a pizza. If Linto ate 2/7th of it, how much did Alisa ate?
Linto and Alisa are sharing a pizza. If Linto ate 2/7th of it, how much did Alisa ate?
Maths-General
Maths-
Alex went to market to purchase tomatoes. He bought 4.5Kg tomatoes at the rate of $12 per kg. How much did he spent ?
Alex went to market to purchase tomatoes. He bought 4.5Kg tomatoes at the rate of $12 per kg. How much did he spent ?
Maths-General
Maths-
The dimensions of room are 8m , 12 m and 10m. Find the lengths of the measuring tape which can measure it in equal parts.
The dimensions of room are 8m , 12 m and 10m. Find the lengths of the measuring tape which can measure it in equal parts.
Maths-General
Maths-
Out of 150 marks, Alisha scored 120. What is her percentage?
Out of 150 marks, Alisha scored 120. What is her percentage?
Maths-General
Maths-
“All similar triangles are congruent”
“All similar triangles are congruent”
Maths-General
Maths-
Joey scored 75, 80,76,85 and 90 in five subjects out 100 each. Calculate his percentage?
Joey scored 75, 80,76,85 and 90 in five subjects out 100 each. Calculate his percentage?
Maths-General
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