diff --git a/problem1.py b/problem1.py
new file mode 100644
index 0000000..63c1d2c
--- /dev/null
+++ b/problem1.py
@@ -0,0 +1,45 @@
+import json
+
+f = open("data.json")
+data = json.load(f)
+
+
+currency = 'INR'
+start_date = '2019-01-01'
+end_date = '2019-01-31'
+
+
+
+max_rate = 0.00
+min_rate = 10000000
+
+for date in sorted(data['rates']):
+    rate = float(data['rates'][date][currency])
+    if rate!= 0.0:
+        if start_date <= date and end_date >= date :
+            
+            if min_rate > rate:
+                min_rate = rate
+            if max_rate < rate:
+                max_rate = rate
+
+
+
+units = 100
+n = 0
+j = 1
+while(n <= units):
+    n =min_rate*0.1*j
+    j += 1
+print(j)
+#units = 30
+
+print("graph of "+currency+" exchange rate against EUR from "+start_date+" to "+end_date)
+print("-"*100+">")
+
+for date in sorted(data['rates']):
+    if start_date <=  date and end_date >=  date :
+        rate = float(data['rates'][date][currency])
+        if rate !=  0 :
+            print(date+" |"+"▇"*int((rate-min_rate*0.99)*j)+" "+str(rate))
+    
diff --git a/problem2.py b/problem2.py
new file mode 100644
index 0000000..a1d779f
--- /dev/null
+++ b/problem2.py
@@ -0,0 +1,85 @@
+import json
+
+f = open("data.json")
+data = json.load(f)
+
+
+currency1 = 'INR'
+currency2 = 'GBP'
+start_date = '2019-01-01'
+end_date = '2019-01-31'
+
+if start_date > end_date :
+    start_date,end_date = end_date,start_date
+
+max_rate1 = max_rate2 = 0.00
+min_rate1 = min_rate2 =10000000
+
+for date in sorted(data['rates']):
+    rate1 = float(data['rates'][date][currency1])
+    rate2 = float(data['rates'][date][currency2])
+    if rate1!= 0.0 or rate2!=0.0:
+        if start_date <= date and end_date >= date :
+            
+            if min_rate1 > rate1:
+                min_rate1 = rate1
+            if max_rate1 < rate1:
+                max_rate1 = rate1
+
+            if min_rate2 > rate2:
+                min_rate2 = rate2
+            if max_rate2 < rate2:
+                max_rate2 = rate2
+
+
+
+units = 100
+n = 0
+j1 = j2 = 1
+while(n <= units):
+    n = min_rate1 * 0.1 * j1
+    j1 += 1
+n = 0
+while(n <= units):
+    n = min_rate2 * 0.1 * j2
+    j2 += 1
+#print(j)
+#units = 30
+
+print("graph of "+currency1+" and "+currency2+" exchange rates against EUR from "+start_date+" to "+end_date+" Graph starts from "+str(min_rate1*0.90)+currency1+" and "+str(min_rate2*0.9)+currency2)
+print("-"*100+">")
+
+for date in sorted(data['rates']):
+    if start_date <=  date and end_date >=  date :
+        rate1 = float(data['rates'][date][currency1])
+        rate2 = float(data['rates'][date][currency2])
+        if rate1 !=  0 or rate2 != 0 :
+            print(date+" |"+"▇"*int((rate1-min_rate1*0.99)*j1)+" "+str(rate1))
+            print("          "+" |"+"▇"*int((rate2-min_rate2*0.99)*j2)+" "+str(rate2)+"\n")
+
+'''unit = 0.1
+scale = 10
+graphics = "▇"
+
+for i in range(1,scale):
+    graphics += graphics
+
+start_rate = min_rate
+dic={}
+
+#converting rate into integer frequency
+for date in sorted(data['rates']):
+    if rate!= 0.0:
+        if start_date <= date and end_date >= date :
+            rate = float(data['rates'][date][currency])
+            freq = (rate - start_rate) // unit
+            dic[date]=(freq,rate)
+            print(date+" -> "+str(rate)+" "+str(freq/10))
+
+print("graph of "+currency+" exchange rate against EUR from "+start_date+" to "+end_date)
+print("-"*100+">")
+
+for k in dic :
+    print(k + " |" + graphics * int(dic[k][0]) + " " + str(dic[k][1]))'''
+    
+    
diff --git a/problem3.py b/problem3.py
new file mode 100644
index 0000000..853e47f
--- /dev/null
+++ b/problem3.py
@@ -0,0 +1,92 @@
+import json
+
+f1 = open("data.json")
+data = json.load(f1)
+f2=open("latest-rates.json")
+latest_rates = json.load(f2)
+
+
+currency1 = 'INR'
+currency2 = 'USD'
+start_date = '2019-01-01'
+end_date = '2019-01-31'
+
+if start_date > end_date :
+    start_date,end_date = end_date,start_date
+
+max_rate1 = max_rate2 = 0.00
+min_rate1 = min_rate2 =10000000
+
+for date in sorted(data['rates']):
+    rate1 = float(data['rates'][date][currency1])
+    rate2 = float(data['rates'][date][currency2])
+    if rate1!= 0.0 or rate2!=0.0:
+        if start_date <= date and end_date >= date :
+            
+            if min_rate1 > rate1:
+                min_rate1 = rate1
+            if max_rate1 < rate1:
+                max_rate1 = rate1
+
+            if min_rate2 > rate2:
+                min_rate2 = rate2
+            if max_rate2 < rate2:
+                max_rate2 = rate2
+
+
+
+units = 100
+n = 0
+j1 = j2 = 1
+while(n <= units):
+    n = min_rate1 * 0.1 * j1
+    j1 += 1
+n = 0
+while(n <= units):
+    n = min_rate2 * 0.1 * j2
+    j2 += 1
+#print(j)
+#units = 30
+
+print("graph of "+currency1+" and "+currency2+" exchange rates against EUR from "+start_date+" to "+end_date+" Graph starts from %.3f"%(min_rate1*0.90)+currency1+" and %.3f"%(min_rate2*0.9)+currency2)
+base='EUR'
+lst_rate1=latest_rates['rates'][currency1]/latest_rates['rates']['EUR']
+lst_rate2=latest_rates['rates'][currency2]/latest_rates['rates']['EUR']
+
+print("Latest Rates(against EUR)\n"+currency1+" %.2f"%(lst_rate1)+"\n"+currency2+" %.2f"%(lst_rate2))
+print("-"*100+">")
+
+for date in sorted(data['rates']):
+    if start_date <=  date and end_date >=  date :
+        rate1 = float(data['rates'][date][currency1])
+        rate2 = float(data['rates'][date][currency2])
+        if rate1 !=  0 or rate2 != 0 :
+            print(date+" |"+"▇"*int((rate1-min_rate1*0.99)*j1)+" "+str(rate1))
+            print("          "+" |"+"▇"*int((rate2-min_rate2*0.99)*j2)+" "+str(rate2)+"\n")
+
+'''unit = 0.1
+scale = 10
+graphics = "▇"
+
+for i in range(1,scale):
+    graphics += graphics
+
+start_rate = min_rate
+dic={}
+
+#converting rate into integer frequency
+for date in sorted(data['rates']):
+    if rate!= 0.0:
+        if start_date <= date and end_date >= date :
+            rate = float(data['rates'][date][currency])
+            freq = (rate - start_rate) // unit
+            dic[date]=(freq,rate)
+            print(date+" -> "+str(rate)+" "+str(freq/10))
+
+print("graph of "+currency+" exchange rate against EUR from "+start_date+" to "+end_date)
+print("-"*100+">")
+
+for k in dic :
+    print(k + " |" + graphics * int(dic[k][0]) + " " + str(dic[k][1]))'''
+    
+    
diff --git a/problem4.py b/problem4.py
new file mode 100644
index 0000000..80b9317
--- /dev/null
+++ b/problem4.py
@@ -0,0 +1,44 @@
+import json
+import requests
+
+currency = 'INR'
+start_date = '2019-01-01'
+end_date = '2019-01-31'
+
+url="https://api.exchangeratesapi.io/history?start_at="+start_date+"&end_at="+end_date+"&symbols="+currency
+response = requests.get(url)
+data = response.json()
+
+max_rate = 0.00
+min_rate = 10000000
+
+for date in sorted(data['rates']):
+    rate = float(data['rates'][date][currency])
+    if rate!= 0.0:
+        if start_date <= date and end_date >= date :
+            
+            if min_rate > rate:
+                min_rate = rate
+            if max_rate < rate:
+                max_rate = rate
+
+
+
+units = 100
+n = 0
+j = 1
+while(n <= units):
+    n =min_rate*0.1*j
+    j += 1
+print(j)
+#units = 30
+
+print("graph of "+currency+" exchange rate against EUR from "+start_date+" to "+end_date)
+print("-"*100+">")
+
+for date in sorted(data['rates']):
+    if start_date <=  date and end_date >=  date :
+        rate = float(data['rates'][date][currency])
+        if rate !=  0 :
+            print(date+" |"+"▇"*int((rate-min_rate*0.99)*j)+" "+str(rate))
+