Subject :NCO Class : Class 2

How many stairs are there between 6^{th} stair and 15^{th} stair?

(a) 5

(b) 7

(c) 8

(d) 10

Subject :NCO Class : Class 2

How many stairs are there between 6^{th} stair and 15^{th} stair?

(a) 5

(b) 7

(c) 8

(d) 10