Driving Simulator Training - Transportation

ScriptingVariables:$ ---reference variable valueNo $ --- variable name::--- global valueSet a variable and initialize its value1. set a 102. set b $a3. set b a4. set b [$a*10]5. set b [expr $a*10]6. set b [expr a*10]7. set c [expr ($a+$b)*10]Correct: set variablename constant (1)set variablename reference another variable value (2)set variablename [expression……] (5,7)28