The average of 6.5, 10.7, 20.2 and a is 17. The value of a is:
6.5, 10.7, 20.2 और a का औसत (Average) 17 है। a का मान ज्ञात कीजिए।
Answer और ExplanationAnswer and explanation
Answer: (B) 30.6
4 संख्याओं का कुल = 4 × 17 = 68
6.5 + 10.7 + 20.2 = 37.4
a = 68 − 37.4 = 30.6
✓
a का मान 30.6 है।
Total of 4 numbers = 4 × 17 = 68
6.5 + 10.7 + 20.2 = 37.4
a = 68 − 37.4 = 30.6
✓
The value of a is 30.6.
Source: RRB Group D · 09 Feb 2026 · Shift 1। Solution: Prashant Sir, Vijayastra।Source: RRB Group D · 09 Feb 2026 · Shift 1. Solution by Prashant Sir, from Vijayastra.