A person spent ₹564 In buying pens and pencils if cost of each penis ₹7 and each pencil is ₹3 and if the total number of things bought was 108, how many of cach type did he buy?

A person wishes to make up as many different parties of 10 as he can out of 20 friends each party consisting of the same number . In how many of the parties the same man is found ?

Sonu went to a shop. He wanted to buy a chiki and a toffee. One chiki costs ₹ 0.75 and a toffee costs ₹ 0.50. If he buys one each of them how much he has to pay to the shopkeeper. Sonu's mother gave him ₹ 2. He gave it to shopkeeper and bought items of ₹ 1.25. How much he will get in return ? Suppose if his mother gave her ₹ 5 then how much will the shopkeeper return ?

A man buys stamps of denominations Rs 5 and Rs 10 for Rs 340. He buys 43 stamps in all. Find the number of each denomination of stamps bought by him.

In how many ways 4 persons can be arranged in 3 rows with out any restriction. If each row can accommodate any number of persons.

Ravi works as a cashier in a bank. He has currency of denominations ₹100, ₹50, ₹10 respectively. The ratio of number of these notes is 2:3:5. The total cash with, Ravi is ₹4,00,000. How many notes of cash of each denomination does he have?

Vinay bought a pizza and cut it into three pieces. When he weighed the first piece he found that it was 7g lighter than the second piece and 4g.heavier than the third piece. If the whole pizza weighed 300g. How much did each of the three pieces weigh?

Vinay bought a cake and cut it into three pleces. When he weighed the first, place he found that it was 7g lighter than the second piece and 4g heavier than the third plece. If the whole cake weighed 300g. How much did each of the three pieces weigh?(Hint: Weight of first piece be 'x' then weight of the second piece is x +7', weight of the third plece is 'x-4).

Total number of pencils required are given by 4x^(4) + 2x^(3) - 2x^(2) +62 x - 66 . If each box contains x^(2)+ 2x -3 pencils, then find the number of boxes to be purchesed.