What is the value of money multiplier when LRR is 10%?

The value of Money multiplier = 1/LRR = 1/0.1 = 10. You can read about the Money Supply in Economy – Types of Money, Monetary Aggregates, Money Supply Control in the given link.

Further readings:

1. Monetary Policy – Objectives, Roles and Instruments (UPSC Indian Economy)
2. Topic-Wise GS 3 Questions for UPSC Mains