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?
The base of an isosceles triangle is cm. The perimeter of the triangle is . What is the length of either of the remaining equal sides?
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.
Let the integers be x, (x+1) and (x+2).
∴ According to the condition, we have
or 2x + 3x +3 + 4x + 8 =74
or 9x +11 = 74
or 9x = 74 - 11 = 63
Dividing both sides by 9, we have
x = 639 = 7
∴ The required integers are:
7, (7+1) and (7+2) or 7, 8, and 9.
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?
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?