A plot of land in the form of a rectangle has a dimension 240 m x 180 m. A drainlet 10 m wide is dug all around it and the earth dug out is evenly spread over the plot, increasing its surface level by 25 cm. Find the depth of the drainlet. Please ans me in an easy way by wich i can understand :P ty
The diameter of a roller is 84cm wide and 1.5m long. If it takes 100 revolutions to leave a playground. Find the cost of levelling a ground at the rate of rs. 50 per second
TWO CUBES HAVE VOLUMES IN THE RATIO 27 : 64 . FINF THE RATIO OF THEIR SURFACE AREAS.
Dear Expert,
In RD Sharma Pg. No. 18.30 Exercises 18.2 Q. 16.... Which is..
A box with lid is made of wood 2cm. thick. Its external length, breadth and height are 25cm., 18cm., and 15cm. respectively. How much cubic cm of a liquid can be placed in it. Also find the volume of the wood used in it.
In this question we substract 2t or 2 times the thickness minise the l,b,h.
Another question which is of Exercise 18.1 Q. 14 Pg.no. 18.14... Which is..
An open box is made up of wood 3cm. thick. its external length, bredth and height are 1.48m., 1.16m. and 8.3dm. find the cost of painting the inner surface of Rs.50 per m2
In this question we substract 2t from the length and the breadth but not height, instead we substract only t from the height and not 2t... Why?... Explain.
a rectangular tank of dimensions 24m x 12m x 8m is dug inside a rectangular field 600m long and 200m broad .The earth taken out is evenly spread over the field . By how much the field is raised . please explain with a helping diagram
Q-the outer dimension of a closed wooden box are 10cm by 8cm by 7cm. the thickness is 1 cm. find the total cost of wood required to make box if 1cm cube of wood costs rupees 20.
why are we suppose to subtract 2cm from the external dimensions and not 1cm
A plot of land in the form of a rectangle has a dimension 240 m x 180 m. A drainlet 10 m wide is dug all around it and the earth dug out is evenly spread over the plot, increasing its surface level by 25 cm. Find the depth of the drainlet. Please ans me in an easy way by wich i can understand :P ty
The diameter of a roller is 84cm wide and 1.5m long. If it takes 100 revolutions to leave a playground. Find the cost of levelling a ground at the rate of rs. 50 per second
TWO CUBES HAVE VOLUMES IN THE RATIO 27 : 64 . FINF THE RATIO OF THEIR SURFACE AREAS.
Dear Expert,
In RD Sharma Pg. No. 18.30 Exercises 18.2 Q. 16.... Which is..
A box with lid is made of wood 2cm. thick. Its external length, breadth and height are 25cm., 18cm., and 15cm. respectively. How much cubic cm of a liquid can be placed in it. Also find the volume of the wood used in it.
In this question we substract 2t or 2 times the thickness minise the l,b,h.
Another question which is of Exercise 18.1 Q. 14 Pg.no. 18.14... Which is..
An open box is made up of wood 3cm. thick. its external length, bredth and height are 1.48m., 1.16m. and 8.3dm. find the cost of painting the inner surface of Rs.50 per m2
In this question we substract 2t from the length and the breadth but not height, instead we substract only t from the height and not 2t... Why?... Explain.
a rectangular tank of dimensions 24m x 12m x 8m is dug inside a rectangular field 600m long and 200m broad .The earth taken out is evenly spread over the field . By how much the field is raised . please explain with a helping diagram
Q-the outer dimension of a closed wooden box are 10cm by 8cm by 7cm. the thickness is 1 cm. find the total cost of wood required to make box if 1cm cube of wood costs rupees 20.
why are we suppose to subtract 2cm from the external dimensions and not 1cm