Tom has $46$ blue and $29$ red balls. He wants to use all the balls to fill a ball pit. He

Question

Tom has $46$ blue and $29$ red balls. He wants to use all the balls to fill a ball pit. He wants at least $70\%$ of the balls to be blue. Find the smallest number of extra blue balls he needs to add to his ball collection.

Accepted Answer

$22$

(E Math) 2025 CCHY P1 Q15

(E Math) 2025 CCHY P1 Q15