Question

sankya 0.0287main sarthak aank kya hai​

Answer 1

$\mathfrak{ \huge{ \red{ \underline{ \underline{ANSWER}}}}} \\ \\ \: \: \: \: \: \: \: \boxed{ \sf{ \pink{ \bold{significant \: no. = 3}}}}$

=> 0.0287 contains 3 significant numbers 2,8 and 7