Question

6. A machine manufactures 48 parts in Bhrs. How many parts will it
7. Oranges are sold at the rate of 21 per dowen Find the cost of 20 oranges,
8. A train covers a distance of 240 km in 5 hrs. How much distance does it cover in 10 hrs?
9,3 dozen of banana cost 72. Find the cost of 120 bananas.
10. If 15 postcards costs 27.50 what will be the cost of 36 such postcards ? Also find the number of​

Answer 1

Answer:

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Answer 2

Answer:

7. Rate of 12 oranges ( 1 dozen of oranges ) = Rs. 21

Therefore, cost of 1 orange = Rs. 21/12

Hence, cost of 20 oranges = Rs. 21/12 * 20 = Rs. 35 ANS.

8. Distance covered in 5 hrs = 240 km

Therefore, distance cover in 1 hour = 240/5 km = 48 km

Hence, distance covered in 10 hrs = 48 * 10 km = 480km ANS.

9. Cost of 36 bananas ( 3 dozens of bananas ) = Rs. 72

Therefore, cost of 1 banana = Rs. 72/36 = Rs. 2

Hence, cost of 120 bananas = Rs. 2 * 120 = Rs. 240 ANS.

10. Cost of 15 postcards = Rs. 27.50

Therefore, cost of 1 postcard = Rs 27.50/15 = Rs. 2750/1500

Hence, cost of 36 postcards = Rs. 2750/1500 * 36

= Rs. 66 ANS.

Step-by-step explanation:

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