Mathematics for class 7 RS Aggrawal Chapter 10 Percentage. In This section of maths Solution, all question are solved step by step.
Therefore Each and every student can understand the solution easily.
RS Aggarwal Class 7 Ex. 10c Solution
RS Aggarwal Class 7 Exercise 10b Solution
8: A number decrease by 8% gives 69. The number is
9: An ore contains 5% copper. How much ore is required to obtain 400 g of copper?
10: After deducting a commission of 10% a TV costs Rs. 18000. What is its grass value?
11: On increasing the salary of a man by 25%. It becomes Rs. 20000. What was his original salary?
12: In an examination 95% of the total examinees passed. If the number of failures is 28, how many examinees were there?
13: A fruit seller had some apples. He sells 40% of them and still has 420 apples. How many apples had he in all?
14: The value of a machine depreciates 10% annually. If it present value is Rs. 25000, What will be its value after 1 year.
15: 8% of a number is 6. What is the number?
16: 60% of 450 =?
17: On reducing the value of a chair by 7%, It becomes Rs. 658. The original value of the chair is
18: 70% of student in a school are boys, If the number of girls is 240, how many boys are there in the school?
19: If 11% of a number exceeds 7% of the number by 18, the number Is
20: If 35% of a number added to 39 is the number itself, the number is
21: In an examination it is required to get 36% to pass. A student gets 145 marks and fails by 35 marks. The maximum marks are
22: A number decreased by 40% gives 135. the number is
