JEE 2021 | सांतत्य तथा अवकलनीयता - L9 | Class 12 गणित | Hindi Medium | Amar Sir | 8 PM

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

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L1 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L2 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L3 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L4 English Medium

If ‘+’ means ‘-’, ‘-’ means ‘+’, ‘ xx ’ means ‘ div ’ and ‘ div ’ means ‘ xx ’ then the value of (42-12xx3+8 div 2+15)/(8xx2-4+9 div 3) is :- यदि ‘+’ का अर्थ ‘-’, ‘-’ का अर्थ ‘+’, ‘ xx ’ का अर्थ ‘ div ’ तथा ‘ div ’ का अर्थ ‘ xx ’ है, तो (42-12xx3+8 div 2+15)/(8xx2-4+9 div 3) का मान होगा :

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.

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.

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?