Question

21. A property dealer charges commission at the rate of 2% on the first 3 200000.1% on the
next 7 200000 and 0.5% on the remaining price. Find his commission on the property that
22. Nikhil's income is 20% less than that of Akhil How much per cent is Akhil's income more
20. The salary of an officer is increased by 20%. By what percenta
reduced to restore the original salary?
has been sold for 3540000.
23. John's income is 20% more than that of Mr Thomas. How much per cent is the income on
Mr Thomas less than that of John?
24. The value of a machine depreciates 10% every year. If its present value is 387000, Wira
was its value 1 year ago?
25. The value of a car decreases annually by 20%. If the present value of the car be 450000
what will be its value after 2 years?
26. The population of a town increases 10% annually. If its present population is 60000. Wiba
will be its population after 2 years?
27. Due to an increase in the price of sugar by 25%, by how much per cent must a household
decrease the consumption of sugar so that there is no increase in the expenditure on sugar​

Answer 1

Answer:

Step-by-step explanation:

Total cost of the property = Rs 540000

Commission on the first Rs 200000 = 2% of Rs 200000

                                                           = 2100×200000 = Rs 4000

Commission on the next Rs 200000 = 1% of Rs 200000

                                                          = 1100×200000 = Rs 2000

Remaining amount = Rs (540000 − 400000) = Rs 140000

∴ Commission on Rs 140000 = 0.5% of Rs 140000

                                                 = Rs 0.5100×140000

                                                 = Rs 51000×140000 = Rs 700

Thus, total commission on the property worth Rs 540000 = Rs (4000 + 2000 + 700)

                                                                                            = Rs 6700

Hence, the commission of the property dealer on the property that has been sold for Rs 540000 is Rs 6700