After getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5%, find the first discount.
Solution
Correct Answer: Option C
১ম ডিসকাউন্ট x%
প্রশ্নমতে ,150×(100-x)/100 ×(100-12.5)/100=105
বা, 150×(100-x)/100×87.5/100=105
বা,100-x=(105×100×100)/150×87.5
বা,100-x =80
বা,100-x=80
বা,-x=-20
অতএব,x=20
প্রশ্নমতে ,150×(100-x)/100 ×(100-12.5)/100=105
বা, 150×(100-x)/100×87.5/100=105
বা,100-x=(105×100×100)/150×87.5
বা,100-x =80
বা,100-x=80
বা,-x=-20
অতএব,x=20
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