Digestion In Human beings


0

23

July 26, 2021

When some metal cubes, with edges of 2 cm each, were dropped into the tank, the water level increased by 4 cm. Find the number of cubes in the tank


0

895

January 31, 2021

Maths class 9 cbse


1

2847

December 24, 2020

Are the bonds in each of the following substances ionic, nonpolar covalent, or polar covalent? Arrange the substances with polar covalent bonds in order of increasing bond polarity:


0

3311

May 29, 2020

Factorise: 250(ab)^3+2


1

496

June 19, 2019

Prove (a+b+c)^3  a^3  b^3  c^3 = 3(a+b) (b+c) (c+a)


1

250

June 19, 2019

If a+b+c = 0, then prove that (b+c)^2 / 3bc + (c+a)^2 / 3ca + (a+b)^2 / 3ab = 1


1

1171

June 18, 2019

If a+b = 12 and ab= 27, find the value of a^3+b^3


1

498

June 18, 2019

If A,B,C are all non zero and A+B+C = 0 Prove that A2/BC + B2/CA + C2/AB = 3


1

690

June 18, 2019

Prove that (a+b+c)3 –a^3b^3c63= 3(a+b)(b+c)(c+a)


1

346

June 18, 2019

Factorise: x^3 + 13x^2 + 32x + 20


1

229

June 18, 2019

Represent root 5 on number line


1

769

June 18, 2019

If a+b+c=5,and ab+bc+ca=10,prove a^3+b^3+c^33abc=25


1

739

June 17, 2019

Prove that (a+b+c)whole cube  a cube b cube  c cube = 3(a+b)(b+c)(c+a )


1

6540

June 17, 2019

The blood groups of 30 students of class VIII are recorded


1

358

April 12, 2019

Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour


1

466

April 12, 2019

Activity : Ask all the students in your class to write a 3digit number


1

819

April 10, 2019

Activity: Note the frequency of twowheelers, threewheelers and fourwheelers going past


1

605

April 10, 2019

The distance (in km) of 40 engineers from their residence to their place of work were found


1

185

April 10, 2019

To know the opinion of the students about the subject statistics, a survey of 200 students


1

359

April 10, 2019

A teacher wanted to analyse the performance of two sections of students in a mathematics test


1

683

April 10, 2019

An organisation selected 2400 families at random and surveyed them to determine


1

615

April 10, 2019

Three coins are tossed simultaneously 200 times with the following frequencies


1

524

April 10, 2019

In a particular section of class IX, 40 students were asked about the month of their birth


1

363

April 10, 2019

1500 families with 2 children were selected randomly, and the following data were recorded


1

784

April 10, 2019

In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays


1

413

April 10, 2019

Give one example of a situation in which (i) the mean is an appropriate measure of central tendency


1

358

April 10, 2019

Find the mean salary of 60 workers of a factory from the following table


1

577

April 10, 2019

Find the mode of 14, 25,14, 28,18,17,18,14, 23, 22,14 and 18


1

581

April 10, 2019

The following observations have been arranged in ascending order


1

342

April 10, 2019
