NDA2020MathematicsBasics of MathematicsActual
What is the value of 1 10 ₅ 1024- ₅ 10+ 1 5 ₅ 3125 ?
Options
- A0
- B1
- C2
- D3
Correct answer
A. 0
Step-by-step solution
aligned & 1 10 ₅ 1024- ₅ 10+ 1 5 ₅ 3125 & = ₅(1025)^ 1 / 10 - ₅ 10+ ₅(3125)^ 1 / 5 aligned aligned & = ₅ (2¹⁰ )^ 1 10 - ₅ 10+ ₅ (5^5 )^ 1 5 & = ₅(2)- ₅ 10+ ₅ 5 & = ₅ ( 2 5 10 )= ₅ 1=0 aligned