Chanti distributed `(3)/(4)th` of his birthday cake to his friends. Find the percentage of the cake distributed to his friends.

He showed great kind to his friend.

He was too glad to see his friend.

2/3 rd of a cake was cut and distributed. The rest of the part is

Arun is treating his friends for his birthday. Four of his friends opt for ice creams that cost Rs. 12 each and five of his friends choose a juice costing Rs. 8 each. How much money did Arun spend on the treat?