NCERT 2022 | आव्यूह - L15 | matrix | Class 12 गणित | Hindi Medium | Jitendra Sir | 8 AM |

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

A cylinder conatins 12 L of oxygen at 20^@ C and 15 atm the temperature is raised to 35 ^@ C . And the volume is reduced to 8.5 L . What is the final pressure of the gas in atmospheres ? Assume that the gas is ideal

Class 12 Maths (Hindi) | Chapter 3 आव्यूह | Important Questions | Quick Revision

(i) A matric has 12 elements ,write all possible orders of this matrix. (ii) A matrix has 8 elements write all possible orders of this matrix. (iii) A matrix has 15 elements , write all possible orders of this matrix.

In fig. 15 A B C D is a parallelogram C M_|_A B and B L_|_A Ddot If \ A B=16\ c m ,\ A D=12\ c m , C M=10\ c m ,\ find \ B L\ If \ A D=10 c m ,\ C M=8c m ,\ B L=12\ c m ,\ find A B .

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21,17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.

The bells of three Churchs ring on the interval of 10, 12 and 15 minute respectively. If those ring at 8:30 A.M. together, then when will those ring next time together?

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5 - 10. (ii) How many children watched television for 15 or more hours a week?

The above Venn diagram represent the students who play 3 sports M, N and L in a class Total number of students who play N & L but not M game is: Options are (a) 15 (b) 68 (c) 9 (d) 12.