Let, primarily, there were x number of boys
Now, number of apples picked up=3x
After arrival of 3 boys, total number of boys = (x+3)
After picking up 1 more apple, total apples = (3x+1)
According to question,
Initially Mr. Zakir had 100 Tk.
After giving 40% money to his wife, he had (100-40)=60 Tk.
Now, he will give 20% to each of 3 sons
So, he gives to his 3 son with total = (60% of 60) Tk.
Now he has Tk. left
After spending 50% on miscellaneous items, he has (50% of 24)= 12 Tk.
Now, has 12 if initial balance is 100 Tk.
He has 12,000 Tk. if initial balance is