Challenger App

No.1 PSC Learning App

1M+ Downloads
The fourth proportion of 12, 24 and 45 is:

A25

B90

C60

D30

Answer:

B. 90

Read Explanation:

12,24,45,?12,24,45,?

=24×4512=108012=\frac{24\times45}{12}=\frac{1080}{12}

=90=90


Related Questions:

Investments made by A, B and C in a craft business is Rs.47,000. If A invest Rs.7,000 more than B and B invest Rs.5,000 more than C, then find the amount C gets out of the total profit Rs.4700.
The ratio of ages of Anil and Ashima is 3:5 .The sum of their ages is 48 years. What is the age of Ashima ?
If a + b + c = 1904, a ∶ (b + c) = 3 ∶ 13 and b ∶ (a + c) = 5 ∶ 9, then what will be the value of c?
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?
ഏത് സമചതുരത്തിലും വശത്തിന്റെ നീളവും ചുറ്റളവും തമ്മിലുള്ള അനുപാതം ?