All gave 15% of invitation cards to Rafique and 20% to Sarfraz. If he still had 520 cards, How many cards did he have originally?
سب نے 15% دعوتی کارڈ رفیق کو اور 20% سرفراز کو دیے۔ اگر اس کے پاس اب بھی 520 کارڈز ہیں، تو اصل میں اس کے پاس کتنے کارڈ تھے؟
Answer: None of these
Explanation
% given away is 35 so he has 65 percent of his cards.
65 % of the total is 520 and representing that mathematically
(65/100) x a = 520
a = 520. 100/65
a = 8 x 100
a = 800
The total number of cards originally is 800
ND18-5-2023
