6. The measure of two adjacent sides of a rectangle are in the ratio of 7:5. If the perimeter of the
rectangle is 336 cm, find its area.
7. How many square tiles of side 14 cm will be required to pave the floor of a rectangular room
9.8 m x 6.4 m?
8. How many envelopes can be made out of sheet of hand made paper 1 m 25 cm by 85 cm if each
envelop requires a piece of paper of size 17 cm by 5 cm? Rohan made these envelopes and sold them
at 12.50 each. What amount he collected? He donated the amount to an orphanage. What values are
displayed by Rohan?
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9. The length of a rectangular field is 60 m and the breadth is th of its length. Find the area of the field.
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Answers
Step-by-step explanation:
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Answer:
6. let length be 7x and breadth be 5x
perimeter = 2(l+b) = 2(7x+5x) = 24x
=> 336 = 24x => x = 14
=> length = 7x = 7(14) = 98cm
breadth = 5x = 5(14) = 70cm
=> area = length×breadth = 98×70
= 6860cm²
==========================================
7. area of one tile = 14×14 = 196cm²
area of rectangular room = 9.8×6.4
= 62.72m²
= 627200cm²
no:of tiles required = 627200/196 = 3200 tiles
==========================================
8. paper needed to make 1 envelope
= 17cm × 5cm = 85cm²
total sheet = 125cm × 85cm
no:of envelopes made = (125×85)/85
= 125 envelopes were made
cost per 1 envelope = 1.25
=> cost for 125 envelopes = 1.25 × 125
= 156.25 rupees was collected
U DIDN'T MENTIONED WHAT PART OF
MONEY HE DONATED TO ORPHANAGE...
IF HE DONATED FULL MONEY TO
ORPHANAGE..... HE DISPLAYED 156.25
==========================================
9. U DIDN'T MENTIONED WHAT PART OF
LENGTH IS BREADTH........ THAT MEANS
THE QUESTION WAS NOT COMPLETE....
CHECK UR QUESTION AND RE-ASK THE
QUESTION
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