self Maths Puzzle

12) What is the greatest possible length of scale to measure exactly the following lengths.
20 Feet , 13 Feet 9 inches , 17 Feet 6 inches , 21 feet 3 inches.

Read Solution (Total 1)

ANSWER : 1 feet 3 inch

SOLUTION :

Given lengths are
20' = 240" (1 feet = 12 inch)
13' 9" = 165"
17' 6" = 210"
21' 3" = 255"
HCF of all above = 15" = 1' 3"
So, Scale length must be 1 feet 3 inch
12 years agoHelpfull: Yes(5) No(1)

self Other Question

1,11,21,1211,111221,? 15) A number is such that when it is multiplied by 8 , it gives another which is as much above from 270as the original (itself) is below 270. The average of the original number and the resultant number is
A) 33.75
B) 190
C) Cannot be determined
D) 270