Chapter 4 – Simple Equations
Assignment 3
Q.1. After 20 years, Manoj will be 5 times as old as he is now. Find his present age.
Q.2. If 45 is added to half a number, the result is triple the number. Find the number.
Q.3. In a family, the consumption of wheat is 4 times that of rice. The total consumption of the two cereals is 80 kg. Find the quantities of rice and wheat consumed in the family.
Q.4. Anamika thought of a number. She multiplied it by 2, added 5 to the product and obtained 17 as the result. What is the number she had thought of ?
Q.5. One of the two numbers is twice the other. The sum of the numbers is 12. Find the numbers.
Q.6. A number when divided by 6 gives the quotient 6. What is the number?
Q.7. The perimeter of a rectangle is 40m. The length of the rectangle is 4 m less than 5 times its breadth. Find the length of the rectangle.
Q.8. The sum of two consecutive multiples of 2 is 18. Find the numbers.
Q.9. Two complementary angles differ by 20°. Find the angles.
Q.10. 150 has been divided into two parts such that twice the first part is equal to the second part. Find the parts.
Q.11. In a class of 60 students, the number of girls is one third the number of boys. Find the number of girls and boys in the class.
Q.12. A number is as much greater than 27 as it is less than 73. Find the number.
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