ram achieved rank one in the class. out of sheer excitement, his mother awarded him * 100 so that he could buy things of his choice from the bakery. he spent the money in the following manner as shown in the table given below. read the following table and explain the logic behind it. ram had 100 rupees amount spent(in inr) amount left(in inr) 40 spent on cake 60 left 30 spent on pastry 30 left 18 spent on donut 12 left 12 spent on chocolate o left total amount spent=100 total amount left= 102
Answers
Answer:
Spent =Rs. 100 Left =Rs.0
Step-by-step explanation
Amount spent Amount Left
Rs.40 100
+Rs.30 -100
+Rs.18 ______
+Rs.12 000
______ ______
Rs.100
______
Hence the amount left with Ram=Rs.0
And the amount spent by him =Rs.100
Correct process is to check that total spent at any time + amount left equals to Initial amount
Given:
Ram had Rs 100
Spent Amount left
40 60
30 30
18 12
12 0
_______________
100 102
To Find:
Why Total of amount left is more than total amount spent
Solution:
This whole way of calculation is wrong.
Let us take another example:
Initial Amount = 100
Spent Amount left
10 90
10 80
80 0
_______________
100 170
Now Difference is Huge
Correct Checking Process is:
At any stage amount of total spent + amount Left must be equal to Initial Amount
Lets check
Initial Amount = 100
Spent Amount left Total Spent + amount left
40 60 40 + 60 = 100
30 30 40 + 30 + 30 = 100
18 12 40 + 30 + 18 + 12 = 100
12 0 40 + 30 + 18 + 12 + 0 = 100
_______________
100 102
Let us check this for another example taken
Initial Amount = 100
Spent Amount left Total Spent + amount left
10 90 10 + 90 = 100
10 80 10 + 10 + 80 = 100
80 0 10 + 10 + 80 + 0 = 100
_______________
100 170
Hence correct checking process is to check that total spent at any time + amount left equals to Initial amount