Question

В. (ii) (iii) D 5xº A E 4x F A •C Сव्हिच ऑफ द फॉलोइंग फिगर एबीसीडी आईएस ए ट्रांसवर्सल फाइंड द वैल्यू ऑफ एक्स इन ईच केस ​

Answer 1

Step-by-step explanation:

Let, B can do the work in x days

∴ Part of work B can do in a day = 1/x

A can do a piece of work in 60 days

∴ Part of work A can do in a day = 1/60

He works alone for 12 days and then B finished it in 24 days

∴ 12/60 + 24/x = 1

∴ 24/x = 1 – (1/5)

⇒ 24/x = 4/5

⇒ 1/x = 1/30

Part of work together they can do the work in a day

= 3/60

= 1/20

∴ They can do the work together in 20 days