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In rib-cage how many pairs of bone are joint to Breast bone?
The LCM of two numbers is 420 and their HCF is 6. If one number is 84, what is the other number?
If the 6-digit number '56x322' is exactly divisible by 18, what is the least value of the digit 'x'?
Use the correct tense: When I reached the station, the train _____.