Exams › SSC CGL (Prelims) › General

The population of a town increases by 5% annually. If the current population is 44,100, what was it two years ago (approximately)?

1. 40,000
2. 41,000
3. 42,000
4. 43,000

Correct answer: 40,000

Solution

If the population grows by 5% per year, then after two years it becomes multiplied by $1.05^2=1.1025$. So the population two years ago was $44100/1.1025=40000$.

Related SSC CGL (Prelims) General questions

• If 40% of P = 0.5 of Q = \(\frac{1}{8}\) of R, find P : Q : R.
• Evaluate: $15\frac{1}{3}\%$ of 480 km + $58\frac{1}{3}\%$ of 300 km.
• A sales agent earns 3% commission on laptops priced at ₹40,000 each and 8% commission on printers priced at ₹8,000 each. If in a week he sells 4 laptops and 10 printers, what is his total commission for 5 such weeks?
• The radius of a circular plate is increased by 8%. What will be the approximate percentage increase in its area?
• A family spends on groceries, rent, and other expenses in the ratio 3:5:2. Next year, groceries are expected to rise by 8%, rent by 4%, and other expenses to fall by 10%. What will be the overall percentage change in total expenditure?
• The budget of a factory is distributed among raw materials, wages, and maintenance in the ratio 4:3:3. During a year, the cost of raw materials rises by 12%, wages by 8%, and maintenance falls by 10%. What is the overall percentage change in the total budget?

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →