โจทย์ภาคภาษาอังกฤษ ข้อ 26-30 มาตามหลังเฉลยของ อา banker อีก
26. 18 buckets of water fill a tank when the capacity of each bucket is 9 litres. How many buckets will be needed to fill the same tank, if the capacity of the bucket is 13.5 litres?
27. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. Find the smaller number.
28. Price of 5 chairs and 2 tables is 1350 bath. Two chairs cost as much as one table. What is the price of one chair and one table?
29. Mali bought eggs at the rate of 4 for 14 baht and sold them at 48 baht per dozen. What percentage did he gain or loss?
30. Water flows through a cylindrical pipe of diameter 5 mm at the rate of 10 cm3 per minute and falls into a conical vessel having 40 cm as the diameter of its base and 24 cm as its height. How long will it take to fill the vessel?