Amit bought 20 postcards for Rs 7. Find the cost of 35 postcards How many postcards can he buy for 10.50
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1
Answer:
20 postcards = *7
1 postcard = 7= 20 = 0.35 paisa
35 postcards cost = 0.35 x 35 = 12.25
from 10.50 he can buy
10.50-0.35 = 30 postcards
Step-by-step explanation:
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Answered by
2
Step-by-step explanation:
By Using The Unitary Method :-
Cost of 20 Postcards = Rs. 7
Cost of 1 Postcard = 7/20 = 0.35 Rs.
Cost of 35 Postcards = 0.35 x 35 = 12.25
Now , For 10.50 - 0.35 = 30 Postcards
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