In which bank was the loan disbursement more then 30% of the disbursement of all banks combined together in 2008?

Required percentage = (120 - 113) x 100 /113 = 700/113 = 6²²/₁₁₃ %

In 2005,
Total disbursement of loans of banks A and B = Disbursement of loans of ( Bank A + Bank B )
Total disbursement of loans of banks A and B = 18 + 27 = 45
Total disbursement of loans of banks C and D = Disbursement of loans of ( Bank C + Bank D )
Total disbursement of loans of banks C and D = 19 + 13 = 32
In 2006,
Total disbursement of loans of banks A and B = Disbursement of loans of ( Bank A + Bank B )
Total disbursement of loans of banks A and B = 23 + 33 = 56
Total disbursement of loans of banks C and D = Disbursement of loans of ( Bank C + Bank D )
Total disbursement of loans of banks C and D = 29 + 19 = 48
In 2007,
Total disbursement of loans of banks A and B = Disbursement of loans of ( Bank A + Bank B )
Total disbursement of loans of banks A and B = 45 + 18 = 63
Total disbursement of loans of banks C and D = Disbursement of loans of ( Bank C + Bank D )
Total disbursement of loans of banks C and D = 22+ 28 = 50
In 2008,
Total disbursement of loans of banks A and B = Disbursement of loans of ( Bank A + Bank B )
Total disbursement of loans of banks A and B = 30 + 41 = 71
Total disbursement of loans of banks C and D = Disbursement of loans of ( Bank C + Bank D )
Total disbursement of loans of banks C and D = 17 + 32 = 49
Since , it is clear that total disbursement of loans of banks A and B is not equal to the total disbursement of loans of banks C and D in any year.

Average disbursement of loans over the years = Total disbursement of loans of all bank (In 2005 + In 2006 + In 2007 + In 2008 ) / Total number of banks
Total number of banks = Bank A + Bank B + Bank C + Bank D
Total number of banks = 1+1+1+1 = 4
Average disbursement of loans over the years = (87 + 104 + 113 +120)/4 = 424/4 = 106 ? 104
Which is nearly equal to the disbursement of loans in year 2006.

Export price per tin in 2004 = Price in 2004/ Quantity in 2004
Export price per tin in 2004 = Rs. 150 crores/ Rs. 100 lakhs = Rs. 150
Export price per tin in 2005 = Price in 2005 / Quantity in 2005
Export price per tin in 2005 = Rs. 150 crores/Rs. 75 lakhs = Rs. 200
Export price per tin in 2006 = Price in 2006 / Quantity in 2006
Export price per tin in 2006 = Rs. 330 crores/Rs. 150 lakhs = Rs. 220
Export price per tin in 2007 = Price in 2007/ Quantity in 2007
Export price per tin in 2007 = Rs. 400 crores/Rs. 160 lakhs = Rs. 250
Export price per tin in 2008 = Price in 2008/ Quantity in 2008
Export price per tin in 2008 = Rs. 500 crores/Rs. 200 lakhs = Rs. 250
it is clear that per tin export price was highest in 2007 and 2008.

Required difference = (200 - 160) = 40 lakhs tins = 40,00,000 tins.

Bank A has given the maximum loan in 2007

The difference between the highest marks in Science in two years = Highest marks in Science in one year - Highest marks in Science in another year
Solve all option one by one
Option ( A ) 1992 and 993
The difference between highest marks in Science 1992 and 993 = 89 - 88 = 1
Option ( B ) 1992 and 1996
The difference between highest marks in Science 1992 and 1996 = 92 - 88 = 4
Option ( C ) 1996 and 997
The difference between highest marks in Science 1996 and 1997 = 98 - 92 = 6
Option ( D ) 1992 and 993
The difference between highest marks in Science 1992 and 1995 = 97 - 88 = 9

The maximum difference is in the years 1992 and 1995, since the least value is in 1992 and the highest value is in 1995.