Question
The average cost price of 25 pens (having equal cost
price) decreased by Rs.4, when one of the pen is replaced by a new pen having cost price of Rs.60. Find the cost price of the pen that was replaced.Solution
Let the cost price of each pen be Rs.x So, cost price of 25 pens = Rs.25x According to the question, => (25x – x + 60)/25 = x – 4 => 24x + 60 = 25x – 100 => x = 160 Therefore, the cost price of the pen that was replaced is = Rs.160
- The salaries of Neeraj, Tarun, and Karan are in the ratio 10:9:6. Their savings follow the ratio 5:3:2. If Tarun’s savings are Rs. 13,500, which is 30% o...
From Ravi's monthly income, he spends 30% on rent and then 25% of the remaining on household items. After that, he uses 40% of the remaining money on ut...
- The commission of a salesperson increased by Rs. 450. If the old commission was 18% less than the new commission, then the old commission was:
The income of 'Q' surpasses that of 'S' by a suffering 4000%. The expenses of 'Q' and 'S' are in a ratio of 125:12. 'Q' has savings that exceed those of...
The ratio of income of 'P' to that of 'Q' is 3:4. Sum of their expenditures is Rs. 72,000. Savings of 'P' is 25% more than that of 'Q'. Expenditure of '...
Bharti's income is 30% higher than Amisha's income, which is Rs. 8000. Bharti spends 25% of his income, and the ratio of Amisha's...
The total monthly salary of Mamta and Rishi is Rs 1,10,000 and the ratio of the expenses of Mamta and Rishi is 7:6 and the ratio of savings of Rishi and...
- The monthly earnings of Farhan, Imran, and Junaid are in the ratio 16:12:10. Their savings follow the ratio 8:6:5. If Imran saves Rs. 21,000, which is 35% ...
- If the monthly income of ‘Anil’ is (100/3)% more than that of ‘Sunil’, then how much percent less is the monthly income of ‘Sunil’ compared to ...
If the monthly salary of Ramesh is (80/4)% more than that of Suresh, then how much percent less is Suresh’s monthly salary compared to Ramesh’s sala...
Relevant for Exams:
