Advertisements
Advertisements
प्रश्न
A floor is 40 m long and 15 m broad. It is covered with tiles, each measuring 60 cm by 50 cm. Find the number of tiles required to cover the floor.
Advertisements
उत्तर
Length of floor (l) = 40 m
breadth of floor (b) = 15 m
∴ Area of floor = l × b = 40 × 15 = 600 m2
Length of one tile = 60 cm =`6/10` m
and breadth = 50 cm = `5/10` m
∴ Area of one tile = `6/10xx5/10`
= `30/100=3/10"m"^2`
∴ Number of tiles =`"Total area of floor"/"Area of one tile"`
= `600/(3/10)=(600xx10)/3=2000`
APPEARS IN
संबंधित प्रश्न
If P is any point in the interior of a parallelogram ABCD, then prove that area of the
triangle APB is less than half the area of parallelogram.
ABCD is a parallelogram whose diagonals AC and BD intersect at O. A line through O
intersects AB at P and DC at Q. Prove that ar (Δ POA) = ar (Δ QOC).
D is the mid-point of side BC of ΔABC and E is the mid-point of BD. if O is the mid-point
of AE, prove that ar (ΔBOE) = `1/8` ar (Δ ABC).
In the given figure, find the area of ΔGEF.
Two parallelograms are on the same base and between the same parallels. The ratio of their areas is
The perimeter of a triangle ABC is 37 cm and the ratio between the lengths of its altitudes be 6: 5: 4. Find the lengths of its sides.
Let the sides be x cm, y cm, and (37 - x - y) cm. Also, let the lengths of altitudes be 6a cm, 5a cm, and 4a cm.
Find the area of a rectangle whose length and breadth are 25 m and 16 cm.
Find the area of a square, whose side is: 7.2 cm.
Parth and Gini bought aam papad (dried mango slice) from a shop. Their pieces looked like these. Both could not make out whose piece was bigger.
- Suggest some ways to find out whose piece is bigger. Discuss
Each line gives a story. You have to choose the question which makes the best story problem. The first one is already marked.
- 352 children from a school went on a camping trip. Each tent had a group of 4 children.
a) How many children did each tent have? b) How many tents do they need? c) How many children in all are in the school?
