Challenger App

No.1 PSC Learning App

1M+ Downloads
ഒരു ചതുരത്തിൻ്റെ നീളവും വീതിയും തമ്മിലുള്ള അംശബന്ധം 3 : 2 നീളം 2 സെൻ്റിമീറ്റർ കൂട്ടി ചതുരം വലുതാക്കിയപ്പോൾ, ഈ അംശബന്ധം 5 : 3 ആയി. ആദ്യത്തെ ചതുരത്തിൻ്റെ നീളം എത്രയായിരുന്നു?

A16

B18

C20

D27

Answer:

B. 18

Read Explanation:

ആദ്യത്തെ ചതുരത്തിൻ്റെ നീളം : വീതി = 3 : 2 = 3x : 2x നീളം 2 സെൻ്റിമീറ്റർ കൂട്ടി ചതുരം വലുതാക്കിയപ്പോൾ നീളം : വീതി = 3x + 2 : 2x = 5 : 3 (3x + 2)/2x = 5/3 3(3x + 2) = 5(2x) 9x + 6 = 10x x = 6 ആദ്യത്തെ ചതുരത്തിൻ്റെ നീളം = 3x = 18


Related Questions:

The ratio of two numbers is 5 ∶ 4. A number y is then subtracted from each of the two given numbers so that the ratio of the resultant numbers becomes 2 ∶ 1. What would be the ratio of the resultant numbers when the same number y is added to each of the two initial numbers?
A solution of milk and water contains milk and water in the ratio of 3 : 2. Another solution of milk and water contains milk and water in the ratio of 2 : 1. Forty litres of the first solution is mixed with 30 litre of the second solution. The ratio of milk and water in the resultant solution is:
The ratio of salaries to Raju Radha and Geetha is 3 : 5 : 7, if Geetha gets Rs.868 more to Raju, then how much is Radha's salary in Rs. :
P, Q, and R invest Rs. 14000, Rs. 18000 and Rs. 24000 respectively to start a business. If the profit at the end of the year is Rs. 25480, then what is the difference between the profit share of P and Q?
Seven years ago, the ratio of the ages of A and B was 4 ∶ 5. Eight years hence, the ratio of the ages of A and B will be 9 ∶ 10. What is the sum of their present ages in years?