Question
What is the fourth proportional to 4, 5,
16?Solution
Let the fourth proportion be x. Then, => 4 : 5 :: 16 : x => 4x = 16 × 5 => x = (16 × 5)/4 = 20
The ages of A, B and C are in the ratio 4:5:7 and the sum of their ages is 80. Find the ratio of 15 years ago B’s age to C’s age after 10 years.
...The ages of A, B and C together are 54 years. B is thrice as old as A and C is 4 years older than A. What is the difference between ages of B and C?
The ratio of the present ages of Ginni and Binni is 8:3 respectively. Ginni is ‘n’ years older than Binni. If after 4 years, the ratio of the ages o...
The current average age of Raghav and Pooja is 34 years. After 6 years, the ratio of their ages will be 7:9. Find Pooja’s age 5 years ago.
The current ratio of the ages of 'Armaan' and 'Bittu' is such that six years from now, it will be 5:4, respectively. Presently, 'Chetna's age exceeds 'B...
The ratio of age of ‘B’ after 6 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 20% of th...
- The sum of present ages of Rina and Tina is 72 years. After 6 years, the ratio of their ages will be 5:7. Find the difference in their ages.
There was a race of 2280 meters between P & Q on a circular track of 380 meters. First time they meet during the race after 4 minutes of starting of rac...
- Five years ago, the ratio of ages of 'A' and 'B' was 4:5. Seven years from now, their age ratio will be 5:6. Find the present age of 'Y' who is 6 years you...
At present Meena is eight times her daughter’s age. Eight years from now, the ratio of the ages of Meena and her daughter will be 9 : 2 respective...
Relevant for Exams:
