Solution of RS Aggarwal Class 7 Maths Chapter 9 Exercise 9a. Unitary Method. All solutions are provided in detail therefore every students can understand the concept easily.
RS Aggarwal Class 7 Ex.9a Solution
RS Aggarwal Class 7 Chapter 8 Exercise 8a
1: If 15 oranges cost Rs. 110, What do 39 oranges cost?
2: If 8 kg sugar costs Rs. 260, How much sugar can be bought for Rs. 877.50?
3: The cost of 37 m of silk is Rs. 6290. What length of this silk can be purchased for Rs. 4420.
4: A worker is paid Rs. 1110 for 6 days. If his total wages during a month are 4625, for how many days did he work?
5: A car can cover a distance of 357 km 42 liters of petrol. How far can it travel on 12 liters of petrol?
6: Travelling 900 km by Rail costs Rs. 2520. What would be the fare for a journey of 360 km when a person travels by the same class?
7: A Train covers a distance of 51km in 45minutes. How long will it take to cover 221km?
8: If 22.5 meters of a uniform iron rod weighs 85.5 kg, What will be the length of 22.8 kg of the same rod.
9: If the weights of 6 sheets of a paper is 162 g, How many sheets of the same quality of paper would weigh 13.5 kg?
10: 1152 bars of soap can be packed in 8 cartons of the same size. How many such cartons will be required to pack 3888 bars?
11: If the thickness of a pile of 16 cardboards is 44 mm, how many cardboards will be there is a pile which is 71.5 cm thick?
12: At a particulars time of a day, a 7 m high flagstaff casts shadow which is 8.2 m long. What is the height of the building which casts a shadow 20.5 m in length the same moment?
13: 15 men can build a 16.25 m long wall up-to a certain height in one day. How many men should be employed to build a wall of the same height but of length 26 m in one day?
14: In a hospital, the monthly consumption of milk 60 patients is 1350 liters. How many patients can be accommodated in the hospital if the monthly ration of milk is raised to 1710 liters, Assuming that the quota per head remains the same?
15: The extension in an elastic string varies directly as the weight hung of it. If a weight of 150 g produces an extension of 2.8 cm, what weight would produce an extension of 19.6 cm?
