A boy has 30 beads. He gives 12 beads to friend A, then receives 8 beads from friend B, then gives 5 beads to friend C. How many beads does he have now?

Step-by-step solution

1. Subtract beads given to friend A: $30-12=18$.
2. Add beads received from friend B: $18+8=26$.
3. Subtract beads given to friend C: $26-5=21$.
4. Answer is $21$.
5. Concept: Multiple give and take operations
6. Common_mistake: Forgetting the order of operations or missing a step.

Concept tested: Multiple give and take operations

Published 16 October 2026 · How this solution was prepared and checked