"The greatest possible length which can be used to measure exactly the lengths
Channel: Doubtnut
Date: 2020-04-05

"The
 greatest possible length which can be used to measure exactly the lengths 7
 m, 3 m 85 cm, 12 m 95 cm is
(a) 15
 cm (b) 25 cm (c) 35 cm (d) 42 cm"