Q1. If you multiply a rational number by 4/5 and subtract 2/3 from the product,You get 1/4 th of the same number,find the rational number. Q2. The ratio of Area and Perimeter of a square field is 13:4. find its area. Q3. Sum of two digits of a two digit number is 8.if you interchange the digit it is found that the new number is 54 greater than the original number,find the original number.
Q4. The ratio of length and breadth of a rectangular blackboard is 13:5.The rate of polishing the blackboard is rs 20/square metre and the total cost of polishing is rs 5200.find the perimeter of the blackboard
Q5 .Anuj is 20 years younger than his mother.10 years from now Anuj’s age will be 3/4 th of his mother’s present age.find their ages.