Question : The following bar chart shows the number of accounts (in '00) opened in a month by 5 banks.
The average money in each account of B1, B3 and B5 is Rs. 500. The average money in each account of B2 and B4 is Rs. 1,000. How much money is there in all the accounts that have been opened during the given month, in all the 5 banks, taken together?
Option 1: Rs. 1,30,00,000
Option 2: Rs. 1,20,00,000
Option 3: Rs. 1,25,00,000
Option 4: Rs. 1,45,00,000
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Correct Answer: Rs. 1,30,00,000
Solution :
From the bar chart,
B1, B3, and B5 have 40, 30, and 36 accounts respectively (in '00) with an average of Rs. 500 in each account.
B2 and B4 have 45 and 32 accounts respectively (in '00) with an average of Rs. 1,000 in each account.
So, the total money in all the accounts = (B1 + B3 + B5) × 500 + (B2 + B4) × 1000
= (4000 + 3000 + 3600) × 500 + (4500 + 3200) × 1000
= 10600 × 500 + 7700 × 1000
= Rs. 53,00,000 + Rs. 77,00,000
= Rs. 1,30,00,000
Hence, the answer is Rs. 1,30,00,000.
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