Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50...

Hasan buys two kinds of cloth materials for school uniforms, shirt materials that costs him Rs. 50 per metre and trouser material that costs him 90 per metre.For every 3 m of shirt material he buys 2 m of the trouser material.He sells the material at 12%, and 10% profit respectively.His total sale is Rs 36,600, How much trouser material did he buy?

A certain radioactive material is known to decay at a rate proportional to the amount present. If initially there is 50 kg of the material present and after two hours it is observed that the material has lost 10% of its original mass, find () and expression for the mass of the material remaining at any time t, (ii) the mass of the material after four hours and (iii) the time at which the material has decayed to one half of its initial mass.

A metal box with a square base and vertical sides is to contain 1024cm3 of water,the material for the top and bottom costs Rs 5 per cm2 and the material for the sides costs Rs 2.50 per cm2. Find the least cost of the box.

There are tow firms A and B, A buys rs 200 worth of raw materials from B. B buys rs 300 worth of raw materials from A. the value of total output of firm A is rs1,000 and that of B is rs 1,500. find out value added by A and B . What measure of value added is this?

In the centre of a square room with sides 10m, there is a square of turkey carpet and the rest of the floor is covered with oil cloth. The carpet and the oil cloth cost Rs 15 and Rs 6.50 respectively per square meter and the total cost of the carpet and the oil cloth is 1,338.50. What is the width of the Oil cloth border?

The prime cost of an article is three times the value of the raw material used. The cost of raw materials increasef in the ratio of 5 : 12 and manufacturing expenses in the ratio 4 : 5 . The article, which originally cost Rs 6, will now cost.

Three schools DPS, CVC and KVS decided to organize a fair for collecting money for helping the flood victims. They sold handmade fans, mats and plates from recycled material at a cost of Rs. 25, Rs.100 and Rs. 50 each respectively. The numbers of articles sold are given as Based on the information given above, answer the following questions: If the number of handmade fans and plates are interchanged for all the schools, then what is the total money collected by all schools?

Read the following text and answer the following questions on the basis of the same : Three schools DPS, CVC and KVS decided to organize a fair for collecting money for helping the flood victims. They sold handmade fans, mats and plates from recycled material at a cost of Rs. 25, Rs. 100 and Rs. 50 each respectively. The number of articles sold are given as If the number of handmade fans and platesare interchanged for all the schools, then what is the total money collected by all schools ?