During which year per tin export price remained at Highest level?

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

From the level of 2004 percentage increase in export price in 2008 = (Price in 2008 - price in 2004) x 100/price in 2004
From the level of 2004 percentage increase in export price in 2008 = (500 - 150) x 100/150 = 233¹/₃%

Export price per tin in 2004 = Price in 2004/ Quantity in 2004
Export price per tin in 2004 = 150 crores/ 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 same in 2007 and 2008.

Export price per tin in 2004 = Price in 2004/ Quantity in 2004
Export price per tin in 2004 = 150 crores/ 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

Required percentage = 1200 x 100 /14900 ? 8%

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.

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.

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

In 2008, the percentage of loan disbursement of bank B to the disbursement of loans of all the banks = Loan disbursement of Company B x 100 / Total loan disbursement in 2008
In 2008, the percentage of loan disbursement of bank B to the disbursement of loans of all the banks = 41/120 x 100 = 34.17% > 30%

Bank A has given the maximum loan in 2007