Find the height of the trapezium in which parallel sides are 25 cm and 10 cm


1

1252

June 24, 2019

A cube and cuboid have same volume. The dimensions of the cuboid are in the ratio 1:2:4


1

1939

June 21, 2019

The last day of the century cannot be Sunday, Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. explain how


1

293

June 21, 2019

If A+B+C=5 and AB+BC+CA=10 then prove that A^3+B^3+C^3 3ABC =25


1

1287

June 21, 2019

(x+y)3 + ( y + z)3 + ( z+x)3  3(x+y)(y+z)(z+x) = 2 ( x3 + y3 + z3  3xyz)


1

741

June 20, 2019

Three girls Reshma, Salma and Mandip are playing a game standing on a circle


1

1282

June 20, 2019

Factorise: 250(ab)^3+2


1

938

June 19, 2019

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


1

884

June 19, 2019

Discuss the main features of the Purvanchal Ranges of the Himalayas


1

1746

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

2016

June 18, 2019

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


1

1680

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

1376

June 18, 2019

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


1

703

June 18, 2019

A circular field has a circumference of 360 km. Three cyclist start together


1

334

June 18, 2019

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


1

487

June 18, 2019

Represent root 5 on number line


1

1166

June 18, 2019

If a + b + c = 6 and ab + bc + ca = 11, find the value of a^3 + b^3 + c^3  3abc


1

718

June 18, 2019

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


1

1234

June 17, 2019

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


1

10042

June 17, 2019

NCERT Solutions for Class 9 Maths


0

339

April 24, 2019

The blood groups of 30 students of class VIII are recorded


1

829

April 12, 2019

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


1

886

April 12, 2019

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


1

1294

April 10, 2019

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


1

971

April 10, 2019

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


1

432

April 10, 2019

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


1

802

April 10, 2019

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


1

1146

April 10, 2019

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


1

1062

April 10, 2019

Three coins are tossed simultaneously 200 times with the following frequencies


1

702

April 10, 2019

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


1

676

April 10, 2019
