self Maths Puzzle

BD::CE
DF::KM
FH::??

Read Solution (Total 3)

self Other Question

log 4x-6logx+8=0 In objective test a correct answer score 4 marks and on a wrong answer 2 marks are deducted. A student scores 480 marks from 150 question. How many answer were correct? options
1)120 2)130 3)110 4)150