Question 6 :
A piece of wire 78 meter long broke into two pieces. One piece was 14 meter long. How long is the other piece?
Total length of wire = 78 meter
Length of first part = 14 meter
Length of first part + Length of remaining part = Total length of the wire
⇒ Length of remaining part = Total length of the wire - Length of first part
Length of remaining part = 78−14=7×1−1×28 [ ∵ L.C.M. of 8 and 4 is 8 ]
= 7−28=58 meter
Therefore, the length of remaining part is 58 meter.