when the price of an article is reduced by 15% the sales increases by 35% . The percentage change in the total amount of receipts is-

when the price of an article is reduced by 15% the sales increases by 35% . The percentage change in the total amount of receipts is- Correct Answer 14 lof 3/4 increse

If one increased and another reduced/decreased then the formula is P - Q - P×Q100 = 35 - 15 - 35×15100 = 20 - 5·25 = 14·75% বা 14 of 34% increase
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দুটি সংখ্যার অনুপাত ৪ঃ৭ প্রত্যেকটির সাথে ৪ যোগ করলে তাদের অনুপাত দাঁড়ায় ৩ঃ৫; ছোট সংখ্যাটি কত?
কঃখ =৩ঃ৫, খঃগ =৪ঃ৭, হলে, কঃগ = কত?