Question

The weights of three iron rods are in the 042 ratio 3:7:10. The weight of the heaviest 40 one is 2 kg 650 g. Find the total weight of the three iron rods. (A) 4 kg 700 g (B) 5 kg 300 g (C) 7 kg 900 g (D) 4 kg 900 g​

Answer 1

5kg 300g

Step-by-step explanation:

given that the ratio of iron rods is

3:7:10

as individual the wait is

3x,7x,10x

in this 10x is heaviest

question has mentioned that

the weight of the heaviest one Is

10x = 2kg 650 g

10x=2650g

x=265g

the weight of the rods is

3x = 3 × 265 = 795g

7x = 7× 265= 1855g

10x = 10× 265= 2650g

total weight is.

795+1855+2650= 5300g

means 5kg 300g option b