Question
The length of a rectangle is four times its breadth. If
its length is increased by 10 cm. and breadth is increased by 10 cm, the area of the rectangle is increased by 600 sq. cm. Find the length of the rectangle.Solution
Let b = x and l = 4 x ∴ Original area = L x B = 4 x × x = 4x² Now, New Area = ( 4 x +10 ) x (x +10) ∴ (4x +10 ) × (x +10) - 4x² = 600 ⇒50x = 600 – 100 ⇒ x =10 ∴ l = 4 × 10 = 40cm
A rectangular paper of width 8cm and length 22cm rolled along it width and a cylinder is formed.Â
On the above Intimation. Solve the question gi...
Which of the following seas has highest salinity in the world?
A has an amount which is 120% of what B has. What percent of the money should. A give to B so that they have equal amounts?
Oceanic tides are the smallest on the
The deepest oceanic trench 'Mariana' is located in -
How many pairs of squares in a chess board share exactly one corner?
Find the odd one out:
 The Union Cabinet is composed of:
Which amongst the following events of the ancient India, was last to happen ?
Lightning is seen before thunder because
