Question

two notebooks and three pens totally costs Rs 44 six notebooks and five pens is taking 116 what is the total cost of three notebooks and three pens​

Answer 1

Answer:

3 Notebooks + 3 Pens =====》 $60

Step-by-step explanation:

Given

2 Notebooks + 3 Pens ===》$44

6 Notebooks + 5 Pens ===》$116

To Find

3 Notebooks + 3 Pens ===== ?

Solution

2N + 3P = 44 -----(1)

6N + 5P = 116 -----(2)

-------------------

(1)×5 = 》10N + 15P = 220 ----(3)

(2)×3 =》18N + 15P = 348 ----(4)

(3)-(4) ==》 -8N = - 128

N = -128/-8

N = 16

Substitute Values of N in (1)

2(16) + 3P = 44

32 + 3P = 44

3P = 44-32

3P = 12

P = 12/3

P = 4

3 (16) + 3 (4) = 48+ 12 = 60

3 Notebooks + 3 Pens =====》 $60