UP Police Constable Exam Model Paper 2

Given:
Tonu investment = 10% more than Monu
Sonu investment = 10% less than Monu
Total investment = Rs. 60,000
Calculation:
Let us take the Monu investment be x.
Tonu's investment = x + 10% of x
Sonu's investment = x - 10% of x
Total investment = x + x + 10% of x + x - 10% of x
x + x + (10% × x) + x - (10% × x) = 60,000
3x = 60,000
x = 20,000
∴ The investment of Monu is Rs. 20,000.