Question

The cost of four Tamil books and 3 English Dictionary books is
Rs.750. The cost of a English Dictionary is 2 times of the cost of a
Tamil Book. What is the total cost of a Tamil Book and a English
Dictionary.​

Answer 1

Answer:

suppose a tamil dictionary - X

English dictionary- 2x

total rupees - 750

so that ,

4(x) +3(3x) = 750

4x +9x =750

13x = 750

X= 750/13

X= 50

so , a tamil book will be of 50 ruppes

a English dictionary will be of 100 ruppes.

hope it will help you ❣️

Answer 2

Answer:

the cost of english dictionary= ₹150

the cost of tamil book =₹75

Step-by-step explanation:

let the cost of 1 tamil book be x

let the cost of 1 english dictionary be y

the cost of 4 tamil book =4x

the cost of 3 English dictionary=3y

so, according to question

4x +3y =₹750

y=2x

by equating both equation

by equation 2 - y/2 =x

so ,putting this value in equation 1

2×y/2 +3y =750

5y = 750

y=150

by putting this value in

y/2=x

x=75