+145 Allan, Bala and Chee Wee had some cards. The ratio of the number of Allan's cards to the number of Bala's cards was 3:5. After Bala and Chee Wee had both lost 1/2 of their cards, Bala had 75 more cards than Chee Wee. The three chidren had 341 cards let in the end. How many cards did Chee Wee have at first?
