Find the digit at unit place in the product (742 × 437 × 543 × 679)
A2
B4
C6
D8
Answer:
D. 8
Read Explanation:
N = 742 × 437 × 543 × 679
The unit digit of N is the unit digit of the product of the unit digits of the above numbers present in the multiplication.
⇒ 2 × 7 × 3 × 9
⇒ 14 × 27
⇒ 4 × 7
⇒ 28
⇒ 8
