Question

important ques for class 10 maths

the total turnover of shri s kumar in the course of inter state trade for the quarter ended on 31st march 2017 is rs.2500000 calculate taxable turnover on the basis of informaton given as under :

sales (rs)                                                                         rate of tax

1020000                                                                            2%

157500                                                                              5%

525000                                                                               5%

565000                                                                                13%

232500                                                                           tax free

solve this ques 

creating the challan

1. What is the d/dx of (2x-1)^2
   

Solve the pair of linear equations 2/X+3/y=13 and 5/x-3/y=-2

 maths

How can I pass the maths

In an examination of mathematics, 2 students from college A, 30 students from college B, and 40 students from college C appeared. Only, 15 students from each of the college could get through the examination. Out of them 10 students from college A and 15 students from college B and 10 students from college C secured full marks.

a)Write down the above data in form of matrix.

b)Calculate the cofactors from the matrix data.

c)Find the adjoint matrix