What is the correct answer?


The length of a rectangle is 18 cm and its breadth is 10 cm. When the length is increased to 25 cm, what will be the breadth of the rectangle if the area remains the same?

A. 7 cm

B. 7.1 cm

C. 7.2 cm

D. 7.3 cm

Correct Answer :

C. 7.2 cm

Let the breadth be B. Then, 25×B=18×10B=18×1015cm=7.2cm25×B=18×10B=18×1015cm=7.2cm

Related Questions

The Diagonals of two squares are in the ratio of 2:5. find the ratio of… The perimeters of 5 squares are 24 cm, 32 cm, 40 cm, 76 cm and 80 cm respectively.… The ratio between the length and the breadth of a rectangular park is… A towel, when bleached, was found to have lost 20% of its length and 10%… The breadth of a rectangular field is 60% of its length. If the perimeter… The area of a rectangle is 460 square metres. If the length is 15% more… What will be the cost of gardening 1 meter boundary around a rectangular… The percentage increase in the area of a rectangle, if each of its sides… A courtyard is 25 meter long and 16 meter board is to be paved with bricks… 50 square stone slabs of equal size were needed to cover a floor area… A rectangular field is to be fenced on three sides leaving a side of 20… A rectangular parking space is marked out by painting three of its sides.… Area of a Rectangular park is 2400 sq.meter. If length of the park decreases… A rectangular plot measuring 90 metres is to be encloseed by wire fencing.… The length of a rectangular plot is 60% more than its breadth. If the… The perimeters of two squares are 40 cm and 32 cm. Find the perimeter… The length of a rectangular polt is 20 metres more than its breadth. If… The length of a rectangle is 18 cm and its breadth is 10 cm. When the… The length of a room is 5.5 m and width is 3.75 m. Find the cost of paving… A farmer wishes to start a 100 sq. m. rectangular vegetable garden. Since… What are the least number of square tiles required to pave the floor of… The diffrence between the length and breadth of a rectangle is 23 m. If…