If the unit digit of (433 × 456 × 43N) is (N+2), then what is the value of N? | StudyFlash MCQ

Maths Number System

If the unit digit of (433 × 456 × 43N) is (N+2), then what is the value of N?

यदि (433 × 456 × 43N) का इकाई अंक (N+2) है, तो N का मान क्या है?

A

(a) 1

B

(b) 8

C

(c) 3

D

(d) 6

Correct Answer: Option D

Explanation / व्याख्या:

Unit digits: 3×6×N. 18×N unit = N+2. For N=6: 18×6=108 unit=8=6+2 ✓.

इकाई: 3×6×N। N=6: 18×6=108 इकाई=8=6+2 ✓।

Practice This Topic Interactive on App →