Maths4all

Question for practice  The following questions are more helpful for  class tenth  and class ninth students for all boards. Que sti ons 4.  The mean of the numbers 6, 10, x, 11, 12, y is 10 and x - y = - 7, find  the values of x and y. Links for the previous questions  and for   more   ...                                                                Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for  more  ...

Question for practice  The following questions are more helpful for  class tenth  and  class ninth  students  for all boards. Que sti ons 3.  Naina has marks of 75, 82 and  90 in three mathematics tests. How many  marks must she obtain in the next test to have  an average of exactly 85 for the four math  tests? Links for the previous questions  and for   more   ...                                                                Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for  more  ...

Question for practice  The following questions are more helpful for  class tenth  students for all boards. Que sti ons 2.  The mean of 20 numbers is  18. If 3 is added to each of the first ten  numbers, find the mean of the new set of  20  numbers. Links for the previous questions  and for   more   ...                                                                Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for  more  ...

Question for practice for class IX and X The following questions are more helpful for  class tenth  students for all boards. Que sti ons 1.   The mean of 1, 7, 5, 3, 4 and 4 is m. The observation 3, 2, 4, 2, 3, 3 and p have mean (m - 1) and median q. Find p and q. Links for the previous questions  and for   more   ...                                                                           Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for  more  ...

Question for practice  The following questions are more helpful for  class tenth  students for all boards. Que sti ons 22. Two numbers are in the ratio of 15 : 11. If their H.C.F. is 13, find the numbers.       Links for the previous questions  and for   more   ...                                                                           Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for  more  ...

Question for practice  The following questions are more helpful for  class tenth  students for all boards. Que sti ons 21.    If tanP - tanQ = a and  cotQ - cotP = b, prove that cot(P - Q) = (1/a) + (1/b) Links for the previous questions  and for   more   ...                                                                           Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy for more  ...

Question for practice  The following questions are more helpful for  class tenth  students for all boards. Que sti ons 20.    If tanA = 2- root(3), then what is value of tan(90 - A). Links for the previous questions  and for   more   ...                                                                           Submit your answer here in the comments  or  wait for answer Read this :  No Burden Seems Heavy