1. A text book of mathematics cost 2 rs/- more than a text book of literature.if 5 literature books cost 38 rs/- more than 3 mathematics books,what is the cost of each literature book?
2. Three persons completed half of a work in 8 days.if one of them discontinues working,how many days would they take to do the remaining half?
3. Gopal borrowed some money at 12% simple interest.if he had to pay back 1280 rs after 5 years,in order to clear off the loan.How much didi he borrow?
4. if total number of students having 12th qualification from UP is 100% more than that from Gujrat and Jharkhand together having same qualification,then what is the total number of students having 12th qualification from U.P. it is given that the ratio of number of students from Gujrat and Jharkhand having 12th qualification is 8:7 and total number of students having 12th qualification from all the states is 85,700.
Please solve the problems in details....
Answers
Answered by
0
Let the cost of a literature book be l.
The mathematics book = (l + 2)
Cost of 5 literature books is 5 × l = 5l
This is 38 more than the cost of 3 maths books.
Three maths books :
3 (l + 2) = 3l + 6
Relating the two :
5l = 3l + 6 + 38
5l - 3l = 44
2l = 44
l = 44/2
l = 22
The cost of one literature book is thus :
Rs 22
Similar questions