Advertisements
Advertisements
प्रश्न
The length of a rectangle is 30 cm more than its breadth. The perimeter of the rectangle is 180 cm. Find the length and the breadth of the rectangle.
उत्तर
Let the breath of the rectangle be x cm.
So, the length of the rectangle = (30 + x) cm
As per the given condition,
Perimeter of the rectangle = 180
⇒ 2(l + b) = 180
⇒ 2(30 + x + x) = 180
⇒ 2(30 + 2x) = 180
⇒ 60 + 4x = 180
⇒ 4x = 180 - 60
⇒ 4x = 120
⇒ x = 30
breadth = x cm = 30 cm
length = (30 + x) cm = (30 + 30) cm = 60 cm
Hence, the breadth is 30 cm and the length is 60 cm.
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
`"y"/-12 = - 4`
Solve: `"x"/5 + "2x" = 33`
A man is four times as old as his son. After 20 years, he will be twice as old as his son at that time. Find their present ages.
Solve the following equation for the unknown: `(9y)/(4) - (5y)/(3) = (1)/(5)`
Shweta's age is six times that of Jayeeta's age. 15 years hence Shweta will be three times as old as Jayeeta; find their ages.
A man covers a distance of 95 km in 5 hours; partly on foot at the rate of 5 km/h and partly on a motorcycle at 40km/h. Find the distance travelled by him on the motorcycle.
A man went to market at a speed of 4 km/h and returned at a speed of 3km/h. If he took 30 minutes more in returning, find the distance of the market from his home.
A takes 4hours more than B in walking 30 km. If A doubles his speed, he will take 1hr less than B. Find the speeds of A and B.
What number increased by 15% of itself gives 2921?
How many kilograms of tea at Rs 50 per kg should be mixed with 35 kg of tea costing Rs 60 per kg so as to sell the mixture at Rs 57 per kg without gaining or losing anything in transaction?
