Question
If both the length and breadth of a rectangle are
increased by 5 m, its area increases by 225 m². The ratio of the perimeters of the square and rectangle is 3:5. Find the side of the square.Solution
ATQ, Let length = x m, breadth = y m (x + 5)(y + 5) – xy = 225 ⇒ 5x + 5y + 25 = 225 ⇒ 5x + 5y = 200 ⇒ x + y = 40 Perimeter of rectangle = 2(x + y) = 80 m Perimeter of square = (3/5) × 80 = 48 m Side of square = 48 ÷ 4 = 12 m
Which of the following statement is correct about Rouging?
Which of the following is considered as stratification treatment given to seeds for breaking dormancy?
Proteins that serve as ion channels are always ______ membrane proteins.
Family cecidomyidae belongs to order:
Which among the following is a goal of Integrated Pest Management (IPM) ?
Mass selection is done in plants on the basis of :
In siphoning type of mouth parts, proboscis is composed of:
Granite primarily contains which mineral?
Which of the following fruits is a rich source of vitamin C?
Which gas is released in the conversion of Pyruvic acid to acetaldehyde?
Relevant for Exams:
