Chapter 2 Linear Equations in One Variable
CLASS 8 ------- MATHEMATICS IMP WORD PROBLEMS
เคเค्เคทा 8 CH-2
เคฐैเคिเค เคธเคฎीเคเคฐเคฃ-เคฎें-เคเค-เคเคฐ
1. Find the solution of 3x-4 = 12
3. What should be subtracted from thrice the rational number -8/3 to get 5/2?
4. The sum of three consecutive multiples of 7 is 63. Find these multiples.
5. Solve 3x/4 – 7/4 = 5x + 12
6. Perimeter of a rectangle is 13cm. if its width is 11/4 cm, find its length.
7. The present of Sita 's father is three times the present age of Sita. After six years sum of their ages will be 69 years. Find their present ages.
8. The digits of a two-digit number differ by 3. If digits are interchanged and the resulting number is added to the original number, we get 121. Find the original number.
9. (x-2)/(x+1) = ½. Find x
10. Sanjay will be 3 times as old as he was 4 years ago after 18 years. Find his present age.
11. If the sum of two numbers is 30 and their ratio is 2/3 then find the numbers.
12. The numerator of a fraction is 2 less than the denominator. If one is added to its denominator, it becomes 1/2 find the fraction.
13.The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its breadth. What are the length and the breadth of the pool?
14.The base of an isosceles triangle is 
cm. The perimeter of the triangle is 
cm. What is the length of either of the remaining equal sides? 15.Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.
16.Two numbers are in the ratio 5:3. If they differ by 18, what are the numbers?
17.Three consecutive integers add up to 51. What are these integers?
18.The sum of three consecutive multiples of 8 is 888. Find the multiples.
19.Three consecutive integers are such that when they are taken in increasing order and multiplied by 2, 3 and 4 respectively, they add up to 74. Find these numbers.
20.The ages of Rahul and Haroon are in the ratio 5:7. Four years later the sum of their ages will be 56 years. What are their present ages?
21.The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength?
22.Find the solution of the equation: 2x + 5 = 2
23.The perimeter of a rectangle is 12 cm and its width is 2 m, find its length?
24.Solve the equation 2x + 5 = x – 3
25.Three consecutive integers add up to 45. Find the integers?
26.The difference between two whole numbers is 24. The ratio of the two numbers is 5:1. Find the two numbers?
27.Aaron is 5 years younger than Ron. Four years later, Ron will be twice as old as Aaron. Find their present ages.
28.Robert’s father is 4 times as old as Robert. After 5 years, father will be three times as old as Robert. Find their present ages.
29. The sum of two consecutive multiples of 5 is 55. Find these multiples.
30.The difference in the measures of two complementary angles is 12°. Find the measure of the angles.
31.The cost of two tables and three chairs is $705. If the table costs $40 more than the chair, find the cost of the table and the chair.
32. If 3/5 แตสฐ of a number is 4 more than 1/2 the number, then what is the number?
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