Jac Board Class 11 Chemistry | Model Paper 3 | Question no. 31 to 35 | Complete Solution

Rajasthan board physics model paper 2022

Rajasthan board physics model paper 2022

Model test paper class 9

11th class English model paper solution

A question bank has questions of Physics and Chemistry. The number of questions of Chemistry are 3.5 times the number of questions of Physics. If there are 90 questions in the question , bank find the number of questions of Physics and Chemistry in the question bank .

A question paper consists of two sections having respectively, 3 and 5 questions. The followinng note is given on the paper "it is not necessory to attempt all the questions one questions from each section is compulsory". In how many ways can candidate select the questions?

Mr. Kohl has a beaker containing n milliliters of solution to distribute to the students in his chemistry class. If he gives each student 3 milliliters of solution, he will have 5 milliliters left over. In order to give each student 4 milliliters of solution, he will need an additional 21 milliliters. How many students are in the class?