Question

7 nuts and 8 bolts together weigh 326 grams and 11 nuts and 10 bolts both weigh 448 grams. Find the weight of 1 nut and 1 bolt by comparision method

Answer 1

Answer:

x=18(nut)

y=25(bolt)

Step-by-step explanation:

7x + 8y = 326 -1

11x + 10y =448 -2

Multiply eq. 1 with 11 and eq. 2 with 7

77x + 88y = 3586

77x + 70y = 3136

subtract

we get,

18y = 450

y = 25

put the value of y in eq. 1

7x X 8X25 =326

7x = 326 - 200

x=126/7

x= 18