Question
Pankaj earns 5/3 times in March, May, July, and December
than his average earning of ₹9000 per month in the rest of the months. So his savings in the March, May, July, and December goes to 7/4 times than that of the rest month’s savings of ₹2000 per month in the year. What is his average expenditure per month?Solution
Earning in the remaining 8 months = 7000 × 8 = ₹56000 Earning in March, May, July, December (4 months) = (7000 × 8/5) × 4 = ₹44800 ⇒ Total earnings (12 months) = 56000 + 44800 = ₹100800 Savings in the remaining 8 months = 4000 × 8 = ₹32000 Savings in March, May, July, and December (4 months) = (4000 × 5/2) × 4 = ₹40000 ⇒ Total savings (12 months) = 32000 + 40000 = ₹72000 ∴ Total expenditure (12 months) = 100800 - 72000 = ₹28800 ⇒ Average expenditure per month = 28800/12 = ₹2400
In an alloy of three metals, ratio of the quantity of gold, silver and platinum is 5:6:4, respectively. If total quantity of silver and platinum togethe...
The number of students in class IX and class X is 42 and 45, respectively. The ratio of the number of boys to girls in classes is IX and X is 9: 5 and 8...
The ratio between two numbers is 7:8. If each number is increased by 9, the ratio between then become 10:11, find the difference between numbers.
Among 132 examinees of a certain school, the ratio of successful to unsuccessful students is 9 : 2, Had 4 more students passed, then the ratio of succes...
In a wallet, the proportion of one-rupee coins to two-rupee coins is 5:6. Within one section of the wallet, the ratio of one-rupee to two-rupee coins is...
- A sum of money is divided between Arvind and Manish in a 2:3 ratio. If the total amount distributed had been increased by 10%, Arvind’s share would have ...
The ratio of two numbers is 5:4. A number y is then subtracted from each of the two given numbers so that the ratio of the resultant numbers becomes 2:1...
The total number of teachers to the total number of students in Schools X and Y is in the ratio 40:9. Additionally, the number of students in School X ...
Relevant for Exams:
