Find the distance covered by the train. After a month, the cost of 4 kg of apples and 2 kg of grapes is Rs 300. Nine times this number is twice the number obtained by reversing the digits. Factors of 175 are 1. How much does a person have to pay for traveling a distance of 25 km? Find the speeds of the train and the bus. The coach of a cricket team buys 3 bats and 6 balls for Rs 3900. Find her speed of rowing in still water and the speed of the current.
The topics and sub-topics in Chapter 3 Playing with Numbers are given below. Find the cost of each bat and each ball. Question 3: The tens digits of a two digit number is four times the units digit. Also determine the vertices of the triangle form by these lines and x — axis. Since , we have xy 0. Find the time taken by one man alone and one boy alone to finish the work. An comprises a good deal of unsolved questions in each chapter that's quite helpful for the last year exams.
Determine the coordinates of the vertices of the triangle formed by these lines and the x-axis, and shade the triangular region. To solve two simultaneous equations in two variables, we draw their graphs on the same graph paper. Find her speed of rowing in still water and the speed of the current. If she travels 100 km by train and the remaining by bus she takes 10 min longer. Factors of 102 are 1, 2, 3,6,17, 34.
If the cars travel in the same direction at different speeds, they meet in 5 hours. Find the number of notes of each denomination. Form the pair of linear equations in the following problems and find their solutions if they exist by any algebraic method: i A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. Using a similarity criterion for two triangles, show that. Ans : Let those friends were having Rs x and y with them.
Common factors of 91,112 and 49 are 1 and 7. Ans : Let the present age of Aftab be x. . This exercise contains 2 questions divided into several parts. All Playing with Numbers Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Either Biju is 3 years older than Ani or Ani is 3 years older than Biju. Find the speeds of the two cars.
Solutions are updated on the basis of and students suggestions. One car starts from A and another from B at the same time. Find the number of lines in the wheel. She takes 4 hours if she travels 60 km by train and the remaining by bus. Hence, the pair of linear equations is consistent. In case there is a unique solution, find it by using cross multiplication method. Gauss brought his theory to solve systems of equations proving to be the most effective basis for solving unknowns.
Hence, the pair of linear equations is inconsistent. Let the money with the first person and second person be Rs x and Rs y respectively. So, the two triangles are not similar. Find the age of the father. How much does a person have to pay for travelling a distance of 25 km? Find her speed of rowing in still water and the speed of the current.
If the digits of the number differ by 3, find the number. Therefore, the vertices of the triangle are 2, 3 , — 1, 0 , and 4, 0. Find the time taken by 1 woman alone to finish the work, and also that taken by 1 man alone. The cost of 2 kg of apples and 1kg of grapes on a day was found to be Rs 160. We cover all exercises in the chapter given below:- - 4 Questions with Solutions - 12 Questions with Solutions - 6 Questions with Solutions - 7 Questions with Solutions - 12 Questions with Solutions - 3 Questions with Solutions - 11 Questions with Solutions. Find the number of students in class.
Hence, the pair of linear equations is consistent. Find the fixed charges and the cost of food per day. Help her friends to find the number of textbooks and story books she had bought. If they travel towards each other, they meet in 1 hour. Had 4 marks been awarded for each correct answer and 2 marks been deducted for each incorrect answer, then Yash would have scored 50 marks. What is the basic first class full fare and what is the reservation charge? Find the fixed charge and the charge for each extra day. The coordinates of vertices are A 1, 0 , B 0,-3 ,C 0, -5.