If the cost of 5 chairs and 4 tables is Rs. 915 and the cost of one table is Rs. 80, then what will be the cost of 5 dozen chairs and 2 dozen tables?

Cost of 5 chairs and 4 tables = Rs. 915 Cost of 1 table = Rs. 80 Cost of 4 tables = 80`xx` 4 = Rs. 320 Cost of 5 chairs = 915 – 320 = Rs. 595 Cost of one chair = `595/5` = Rs. 119 Cost of 5 dozen chairs = 5 `xx` 12 `xx` 119 = Rs. 7,140 Cost of 2 dozen tables = 2 `xx` 12`xx` 80 = Rs. 1,920 Total cost = 7,140 + 1,920 = Rs.9,060

- 11
^{4}+ 11^{5}+ 11^{6}is divisible by - How many digits are required to write first 250 natural numbers?
- Find out the quantity of four-digit numbers that can be created by utilizing the digits from 1 to 9 if repetition of digits is not allowed?
- How many 100 digit positive numbers are there?
- The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
- If a number is decreased by 8 and divided by 12, the result is 16. What would be the result if 10 is subtracted from the number and then it is divided by 5.
- The raw material cost of an article is 1/3 of its manufacture cost. If the cost of manufacturing is decreased in the ratio of 4 : 3 and the cost of its raw material is increased in the ratio of 4 : 5, then overall cost of article reduced by Rs. 16. Find out its initial cost?
- Happy and Sad are running on a circular track of radius 245 metres. Happy can complete a round in 200 seconds and the speed of Sad is twice the speed of Happy. They started simultaneously towards each other from two points diametrically opposite on the circular path. If they first meet at a point they called it a danger point which is between the two points A and B from where they have started their race, After how much time from the start do they met at danger point for the third time?
- Find the number of factors of 240?
- In a test comprising 200 questions, four marks are awarded for every question answered correctly. The number of marks deducted for every question answered wrongly and for question left unattempted is 2 and 1 respectively. If a student got 80 marks in the test, then which of the following can be the number of questions solved wrongly by the students?

More No. System Questions

×