Challenger App

No.1 PSC Learning App

1M+ Downloads
If the radius of a circle is increased by 15% its area increases by _____.

A15%

B30%

C32.25%

D16.5%

Answer:

C. 32.25%

Read Explanation:

Area increased by = 15 + 15 + (15 × 15)/100 = 30 + 2.25 = 32.25%


Related Questions:

A, B and C joined a company in November on dates 16, 11 and 21 respectively. At the end of the month, A received Rs. 27,000 as the salary which is 20% more of what B received and 10% less of what C received. Then which of the following are the monthly salaries of B and C respectively?
P gets 360 marks out of a total score of 500. Marks of P are 10% less than Q's score. Q got 25% more than R, and R got 20% less than S. What is the percentage marks of S?
ഒരു സംഖ്യയുടെ പകുതിയും അതിൻ്റെ 20% വും തമ്മിൽ കൂട്ടിയാൽ 420 കിട്ടും എങ്കിൽ സംഖ്യ ഏത്?
The price of petrol is increased by 25%. By how much percent should a car owner should reduce his consumption of petrol so that the expenditure on petrol would not increase?
A batsman scored 160 runs which includes 15 boundaries and 6 sixes. What percentage of his total score did he make by running between the wickets ?