Answer:
a
Step-by-step explanation:
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Answer: The required percentage is 75% of print area filled with advertisement.
Step-by-step explanation:
Since we have given that
Part of the print area of the newspaper carried new = 
Rest was filled with advertisements = 
So, Percentage of the print area was filled with advertisement is given by

Hence, the required percentage is 75% of print area filled with advertisement.
Answer:
32-28=4
Step-by-step explanation:
See the attachment :)
Answer:
400$
Step-by-step explanation:
Let C.P. of the watch = Rs. 100
When profit =5%; S.P. = Rs. (100+5)
= Rs. 105
and when profit = 11%;
S.P. = Rs. (100+11)
=Rs.111
Difference of two selling prices
= Rs. 111-Rs.105 = Rs.6
When watch sold for Rs. 6 more; then C.P. of the watch = Rs.
100
6
When watch sold for Rs. 24 more; then C.P. of the watch = Rs.
100
6
×
24
= Rs.
100
×
24
6
=400
<ADB=20
<ADC=55
<BDC=32.5
<ACB=20