Question

08. The cost of a fan and a watch is RS. 3600. If the cost of watch is 7 times the cost of fan
find the cost of the fan.​

Answer 1

Step-by-step explanation:

let x be the cost of the fan

cost of watch = 7x

Total cost = cost of fan + cost of watch

3600 = x + 7x

3600 = 8x

3600 ÷ 8 = x

450 = x

Therefore, cost of fan = x = ₹450

and cost of watch = 7x = 7 × 450 = ₹ 3150

Answer 2

Answer:

Step-by-step explanation;

cost of fan and watch=3600

let x be cost of fan and y be cost of watch

then, x+y=3600

here y= 7x

so substitute the value 7x in place of y

so x+7x=3600

8x=3600

x=3600/8=450

then now put the value of x in x+y=3600

we get 450+y=3600

            y=3600-450

            y=3150

so,cost of fan Rs.450 and cost of watch is Rs.3150