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Amu invested Rs 1520  in a business. After few months Rajan  joined him and invests Rs 1140. At the end of year both of them share the profits at the ratio of 2:1. After how many months Rajan joined Amu ?

Amu invested Rs 1520  in a business. After few months Rajan  joined him and invests Rs 1140. At the end of year both of them share the profits at the ratio of 2:1. After how many months Rajan joined Amu ? Correct Answer 4

Calculation:

We can simply compute per month investment of both partnership,

Amu invested Rs 1520  for 12 months and Rajan invested Rs 1140 for x months.

Now 1520 × 12 / 1140 × x = 2 :1

⇒ 76 × 12 / 2 = 57x

⇒ x = 8

So Monty invested his money for 8 months and he joined after 4 months.

∴ Rajan joins after 4 months of amu

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