Question

Physical change hemical change
17. Ram conducted an experiment related to the rate of percolation. He observed that it took
20 minutes for 200ml of water to percolate the soil sample. Calculate the rate of
percolation​

Answer 1

Answer:

cost of post cards = ₹ 10.50

    Cost of Inland letters= ₹ 7 

    Cost of revenue stamps= ₹ 12.75

Add :- ₹10.50 + ₹7 + ₹12.75

        =.  ₹30.25 

He gave a money to the shopkeeper= ₹50

Subtract :- ₹ 50.00 - ₹30.25

                    = ₹19.75

Ans. ₹19.75

Answer 2

Answer:

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