Pawan is a cashier in a bank. He has currency notes of denominations 1000 and 100 respectively. The ratio of the number of these notes is 4:10. If the total cash with Pawan is Rs.5,00,000, how many notes of Rs.1000 denomination does he have?
625
No. of 1000 denomination notes Pawan has = 4x
No. of 100 denomination notes Pawan has = 10x
For 1000 notes, amount of money
=Rs.4000x
For 100 notes, amount of money
=10x×100=Rs.1000x
Total sum
=4000x+1000x=Rs.5,00,000 (Given)
5000x=5,00,000
x=100
Number of 1000 denomination notes
=4×100=400 notes