Sanjay received Rs. 6000 as his share out of the total profit of Rs. 9000 which he and Suresh earned at the end of one year. If Sanjay invested Rs.120000 for 6 months, whereas Suresh invested his amount for the whole year, what was the amount invested by Suresh ?
Suppose Suresh invested Rs. x. Then,
Sanjay : Suresh = 20000 * 6 : x * 12.
=> 120000/12x : 6000/3000
=> x = 120000/24 = 5000
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