Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions

Simplify and express the following in exponential form:

`(a^5/a^3)xx a^8`

Simplify and express the following in exponential form:

`(4^5 xx a^8b^3)/(4^5 xx a^5b^2)`

Simplify:

`((2^5)^2 xx 7^3)/(8^3 xx 7)`

Simplify:

`(25 xx 5^2 xx t^8)/(10^3 xx t^4)`

Simplify:

`(3^5 xx 10^5 xx 25)/(5^7 xx 6^5)`

Find the sum:

`5/4 + ((-11)/4)`

Find the sum:

`5/3 + 3/5`

Find the sum:

`(-9)/10 + 22/15`

Find the sum:

`(-3)/(-11) + 5/9`

Find the sum:

`(-8)/19 + (-2)/57`

Find the sum:

`(-2)/3 + 0`

Find the sum:

`-2 1/3 + 4 3/5`

The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively. Find its area

The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively. Find the cost of the land, if 1 m² of the land costs Rs 10,000.

Find the area of a square park whose perimeter is 320 m.

Find the breadth of a rectangular plot of land, if its area is 440 ^m2 and the length is 22 m. Also find its perimeter.

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth. Also find the area.

The area of a square park is the same as of a rectangular park. If the side of the square park is 60 m and the length of the rectangular park is 90 m, find the breadth of the rectangular park.

A wire is in the shape of a rectangle. Its length is 40 cm and breadth is 22 cm. If the same wire is rebent in the shape of a square, what will be the measure of each side. Also find which shape encloses more area?

The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm, find its length. Also find the area of the rectangle.