The greatest possible length which can be used to measure exactly the length 9m, 4m 90cm, 11 m 20 cm is Choose the correct choice from the following options
A) 15 cm  B) 25 cm  C) 10 cm  D) 12 cm  E) 43 cm
Explanation:   Required Length = H.C.F of 900 cm, 490 cm and 1120 c   = 10 cm. Answer: 10 cm
<result>C</result>
The greatest possible length which can be used to measure exactly the length 9m, 4m 90cm, 11 m 20 cm is