Arjun weighs twice as Surbhi and Sejal weighs 5 kg less than Arjun if the total weight of Arjun Surabhi and Sejal is 63 kg then find the total weight of Sejal and Arjun
Answers
If the total weight of Arjun, Surabhi and Sejal is 63 kg then the total weight of Sejal and Arjun is 49.4 kg.
Step-by-step explanation:
Let Surabhi’s weight be “x” kg.
It is given Arjun is twice as heavy as Surabhi.
So, Arjun’s weight = 2x
Also given that, Sejal weighs 5 kg less than Arjun.
So, Sejal’s weight = 2x – 5
Total weight of Arjun, Surabhi and Sejal is given as 63 kg.
Therefore, we can write the equation as,
2x + x + (2x - 5) = 63
⇒ 3x + 2x - 5 = 63
⇒ 5x – 5 = 63
⇒ 5x = 63 + 5
⇒ x = 68/5
⇒ x = 13.6 kg
Thus,
The total weight of Sejal and Arjun is given by,
= [2x - 5] + 2x
= 4x – 5
= (4 * 13.6) – 5
= 54.4 – 5
= 49.4 kg
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