Estimate product of 35 and 7 is
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Answer:
Let no. of Rs. 50 notes = X
no. of Rs. 100 notes = y
Total notes = 25
⇒ x+y=25
⇒ x = 25-y
total amount only in Rs. 50 notes = 50x
total amount only in Rs. 100 notes = 100y
Total amount = 2000
→ 50x + 100y = 2000 50(25-y) + 100y = 2000
→ 50×25-50y + 100y = 2000
1250 +50 y = 2000 → 50y = 2000-1250 = 750
⇒ y = 750/50 = 15
x = 25-15 10
No. of Rs. 50 notes = 10
No. of Rs. 100 notes = 15
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