The area of lawn is 460 m2. If the length is 15 percent more than the breadth of the rectangular field What is the length of the field?

The area of lawn is 460 m2. If the length is 15 percent more than the breadth of the rectangular field What is the length of the field? Correct Answer None of these

460m² = L B ————— {1} Where as lenghth is 15% more than breadth i.e. 15b/100 + b = L Substitute L in {1} 460m² = (15b/100 + b) × b 460m² = (15b + 100b/100) × b 460 × 100 = 15b² + 100b² 46000 = 115b² 46000/115 = b² 400 = b² 20 × 20 = b × b :• b = 20 Breadth = 20m Length = 23m
Bissoy MCQ

Related Questions

The length of a rectangular blackboard is 8 m more than its breadth. If its length is increased by 7 m and its breadth is decreased by 4 m, its area remains unchanged. The length and breadth of the rectangular blackboard is :
The area of a rectangle is 460 square meters. If the length is 15% more than the breadth, what is the breadth of the rectangular field?
The area of a rectangle is 460 square metres. If the length is 15% more than the breadth, what is the breadth of the rectangular field?
A rectangular lawn of dimensions 80 m x 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m ?
The area of a rectangular plot is 460 square metres, if the lenght is 15% more than the breadth, what is the breadth of the plot?
The area of a rectangular field is 52000 sq. meters. This rectangular area has been drawn on a map to the scale 1 cm to 100 m. The length is shown as 3.25 cm on the map. The breadth of the rectangular field in the map is -
Ehsan can mow the lawn in 30 minutes, and together with his brother Asif, they can mow the lawn in 20 minutes. How long would it take for Asif working alone to mow the lawn?
Sam can mow a lawn in 20 min, while takes 10 min longer to mow the same lawn. How long will they take to mow the lawn if they work together?
Sam can mow a lawn in 20 min, while mark takes 10 min longer to longer to mow the same lawn. How long will they take to mow the lawn if they work together?
Jason can mow a lawn in 2 hours . ciera can mow the same lawn in 4 hours. If they work together. how many hours will it take them to mow the same lawn?