Q1. The compound interest on a sum of money for 2 years is Rs. 832 and the simple interest on the same sum for the same period is Rs. 800. The difference between the compound interest and the simple interest for 3 years at the same rate will be:
Q2. A person took a loan of Rs. 6000 for 3 years, at 5% per annum compound interest. He repaid Rs. 2100 in each of the first 2 years. The amount he should pay at the end of 3rd to clear all his debts is:
Q3. Nikita bought 30 kg of wheat at the rate of Rs. 9.50 per kg and 40 kg of wheat at the rate of Rs. 8.50 per kg and mixed them. She sold the mixture at the rate of Rs. 8.90 per kg. Her total profit or loss in the transaction was:
= (30 × 9.5 + 40 × 8.5
= 285 + 340
= Rs. 625
Total SP of 70 kg of wheat
= 8.90 × 70
= Rs. 623
∴ Loss = 625 - 623 = Rs. 2
Q4. A trader marks-up his goods by 60% and gives discount of 25%. Besides it he weighs 20% less amount while selling his goods. What is the net profit of trader?
Q5. The marked price of an electric iron is Rs. 690. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, his gain per cent would be
Directions (6-10): Study the following graph carefully to answer the questions that follow:
Cost of three different vegetables (in rupees per kg.) in five different cities.
Q6. In which city is the difference between the cost of one kg. of mushroom and cost of one kg. of lady finger second lowest?
Q7. Cost of one kg. of lady finger in Ludhiyana is approximately what percent of the cost of two kg of cauliflower in Chitrakut?
Q8. What will be the difference between average cost of all vegetables in Chitrakut and average cost of all vegetables in Ludhiyana?
Q9. Ravinder had to purchase 45 kg of cauliflower from Hissar. Shopkeeper gave him discount of 4% per kg. What amount did he pay to the shopkeeper after the discount?
Q10. What is the respective ratio between the cost of 5/2 kg. of cauliflower from Raigarh to the cost of 3/2 kg. of mushroom from Ludhiyana?
Directions (11-15): What will come in place of question mark (?) in the following questions?
Q11. 112, 225, 345, 479, 634, ?
Q12. 516, 514, 502, 472, 416, ?
Q13. 12, 11, 18, 45, 164, ?
11 × 2 – 2² = 18
18 × 3 – 3² = 45
45 × 4 – 4² = 164
164 × 5 – 5² = 795
Q14. 28, 15, 17, 28.5, 61, ?
15 × 1 + 2 = 17
17 × 1.5 + 3= 28.5
28.5 × 2 + 4 = 61
61 × 2.5 + 5 = 157.5
Q15. 71, 91, 117, 155, 217, ?