Gaurav spends 30% of his monthly income on food, 40% of the remaining on conveyance and clothes, and saves 50% of the remaining . If his monthly salary is Rs 18400, how much money does he save every month?
3864
3500
11870
11875
Explanation:
Let’s say Gaurav’s monthly income is Rs.100
Gaurav spends 30 Rs. on food, remaining Rs. = 100 - 30 = Rs. 70
Spending on conveyance and clothes = 40% of 70 = (40/100) x 70 = Rs. 28
Remaining Rs. = 70 - 28 = Rs. 42
Saving = 50% of 42 = (50/100) x 42 =Rs. 21
Applying unitary method now,
If monthly income is 100 Rs. then saving is Rs.21 Rs.
If monthly income is 1 Rs. then saving = (21/100) Rs.
If monthly income is 18400 then saving = (21/100) x 18400
Therefore, Gaurav’s monthly saving = 21 x 184 = Rs.3864
Let’s say Gaurav’s monthly income is Rs.100
Gaurav spends 30 Rs. on food, remaining Rs. = 100 - 30 = Rs. 70
Spending on conveyance and clothes = 40% of 70 = (40/100) x 70 = Rs. 28
Remaining Rs. = 70 - 28 = Rs. 42
Saving = 50% of 42 = (50/100) x 42 =Rs. 21
Applying unitary method now,
If monthly income is 100 Rs. then saving is Rs.21 Rs.
If monthly income is 1 Rs. then saving = (21/100) Rs.
If monthly income is 18400 then saving = (21/100) x 18400
Therefore, Gaurav’s monthly saving = 21 x 184 = Rs.3864