Question

Arjun weighs twice as Surbhi and Sejal weighs 5 kg
less than Arjun. If the total weight of Arjun, Surbhi
and Sejal is 63 kg, then find the total weight of Sejal
and Arjun
A. 54.2 kg
B. 47 kg
C. 49.4 kg
D. 62.4 kg​

Answer 1

Answer:

c. 49.4 kg

Step-by-step explanation:

let the weight of arjun be 2x

and surbhi be x

and sejal be 2x - 5

2x + x + 2x - 5 = 63

5x = 68

x = 13.6

weight of arjun 27.2 kg

surbhi 13.6 kg

sejal 22.2 kg

Answer 2

The correct option is C) 49.4 kg.

Step-by-step explanation:

Consider the provided information.

Let the weight of Arjun is x, Surbhi is y and Sejal is z.

Arjun weighs twice as Surbhi.

This can be written as:

$x=2y$

$y=\frac{x}{2}$

Sejal weighs 5 kg  less than Arjun.

$z=x-5$

The total weight of Arjun, Surbhi  and Sejal is 63 kg.

$x+y+z=63$

Substitute the value of y and z in above equation.

$x+\frac{x}{2}+x-5=63$

$2x+\frac{x}{2}=68$

$4x+x=136$

$5x=136$

$x=27.2$

Hence, the weight of Arjun is 27.2 kg.

The weight of Sejal is 5 kg less than Arjun.

Sejal = 27.2-5=22.2 kg

Hence, the total weight of Sejal and Arjun is 27.2+22.2=49.4 kg

Therefore, the correct option is C) 49.4 kg.

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