Arpit bought 16 new coloured pens for making his Science project. If the total weight of the pens is `266(2)/(3)gm`, find the weight of a single pen.

Suresh has three boxes of different fruits. Box 1 weighs 2(1)/2 -kg more than Box 2 and Box 3 weighs 10(1)/4 kg more than Box 2. If the total weight of the three boxes is 48(3)/4 kg, find the weight of each box.

Joe distributed some pens among the other students of his class. The number of students among whom he distrubted pens was 3 more than the number of pens each got . If the total number of pens distributed is less than 21,which of the following is the correct inequality for the total number of students s, in the class ?

Rahul bought 4 kg 90 g of apples, 2 kg 60 g of grapes and5 kg 300 g of mangoes. Find the total weight of all the fruits he bought

A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled into it. The diameter of the pencil is 7mm, the diameter of the graphite is 1mm and the length of the pencil is 14cm. Find the: (i) Volume of the graphite (ii) Volume of the wood (iii) The weight of the whole pencil, if the specific gravity of the wood is 0. 7\ gm//c m^3 and that of the graphite is 2. 1\ gm//c m^3

A shopkeeper purchased one dozen pens for Rs. 108 and sold these at Rs. 12.50 each. find: (i) the cost of one pen. (ii) profit or loss on selling one pen. (iii) his total profit or loss onselling all pens.

Ravi weighs (2)/(3) rd of the weight of his elder brother and (5)/(9) th of the weight of his father. Find the ratio of the weight of his elder brother to the weight of his father.

Rahul bought 4 kg 90 g of apples, 2 kg 60 g of grapes and 5 kg 300 g of mangoes. Find the total weight of all the fruits he bought

The weights of three packets are 2""3/4 kg, 3""1/3 kg and 5""2/5 kg. Find the total weight of all the three packets.

A pen stand made of wood is in the shape of a cuboid with four conical depressions and a cubical depression to hold the pens and pins, respectively. The dimension of the cuboid are 10 cm, 5 cm and 4 cm.The radius of the each of the conical depression is 0.5 cm and depth is 2.1 cm . The edge of the conical depression is 3 cm. Find the volume of the wood in the entire stand.

Hanumappa and his wife Gangavva are busy making Jaggery out of sugar-cane. They have processed the sugarcane juice to make the molasses which is poured into moulds of the shape shown in Figure. It will be cooled to solidify in this shape to be sent to the market. Each mould is in the shape of a frustum of a cone having the diameters of its two circular ends as 30 cm and 35 cm and the height of the mould is 14 cm. If each c m^3 of molasses weighs about 1.2 gm, find the weight of molasses that can be poured into each mould (Take pi=22//7 )