Book Maths Puzzle Logical Reasoning General Mental Ability

next door to me live four brothers of different heights.Their average height is 74 inches.Difference in heights amongst first three is 2 inches.Difference between third and fourth men is 6 inches.Can you tell how tall is each brother?

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Book Other Question

Fifty minutes ago it was 4 times as many minutes past three 'o clock.how many minutes is it to six 'o clock Find number in ten's place of 1!+2!+3!+.........+50!?