Question

The square of 43 ends with the digit
(a) 9 (b) 6 (c) 4 (d) 3
12. Closure property is not true for division of rational
numbers because of the number
(a)1 (b) -1 (c) 0 (d) 1/2
13. If 10 x
/10 -3 =10⁹, then x is
(a) 4 (b) 5 (c) 6 (d) 7.
14. The product of 7p³ and (2p²)² is
(a) 14p¹² (b) 28p⁷ (c) 9p⁷ (d) 11p¹²
15. If the area of the square is 36x⁴y² then it’s side is
(a) 6x⁴y² (b)8x²y² (c) 6x²y (d) -6x²y

Answer 1

A) Correct option: (a) 9

432 = 43 × 43 = 1849

Therefore, the square of 43 ends with the digit 9.

B) D) 1/2

C) X= 4

D) 14p12

E) 6x4y2