Hi sorry one more questions stuck !!!
thank u All
Hi sorry one more questions stuck !!!
thank u All
Another alternative.
file ——- 3/4 pen
4 files ——- 3 pens
3/7 of his money ——- 16 files + 3 pens = 20 files = 15 pens
1/7 of his money ——- 15/3 = 5 pens
1 – (3/7) = 4/7
4/7 of his money ——- 5 pens + some files
4/7 – 1/7 = 3/7
3/7 of his money ——- 20 files
20 + 16 = 36
Ans : 36 files.
Hope that this model explains the concept sufficiently.