Question

Vijay weighed `65 1/2` kg. He gained `1 2/5` kg during the first week, `1 1/4` kg during the second week, but lost `5/16` kg during the 16 third week. What was his weight after the third week?

Answer 1

In the beginning, weight of vijay `= 65 1/2` kg

Gained in first week = `1 2/5` kg

Gained in second week = `1 1/4` kg

Lost in the third week = `5/16` kg

∴ Weight of Vijay after third week

`= (65 1/2 + 1 2/5 + 1 1/4 - 5/16)` kg

`= (131/2 + 7/5 + 5/4 - 5/16)` kg

`= (5240 + 112 + 100 - 25)/80`  (LCM of 2, 5, 4 and 16 = 80)

`= (5452 - 25)/80 = 5427/80 "kg" = 67 67/80 "kg"`