What is the minimum distance one has to stand at from a wall to hear an echo?
The correct answer is B
The proportion of books sold by Sita on Monday to those on Tuesday stands at 8:5. Sita's book sales on Wednesday exceed Tuesday's by 34, while Thursday'...
If A:B:C = 2:3:8 and (C - B) = 130, then find the product of 'C' and 'A'.
Ratio of the number of pens with Sumit, Rohan, Chetan, Dheeraj and Gagan is 2 : 3 : 4 : 5 : 6 respectively. If two of them have more than 20% of the tot...
Samir distributed 625 gifts among 4 children. The first part of the child is twice the portion of the other child, three times the size of the third chi...
Mr Rohila left his entire property to his wife, daughter and son and the cook. His son and daughter got half the estate, sharing in the ratio of 3:2. Hi...
In a college the ratio of boys and girls are in the ratio 7:9. 65% girls and 40% boys were absent. Find the girls present if the total number of student...
In a wallet, the proportion of one-rupee coins to two-rupee coins is 5:6. Within one section of the wallet, the ratio of one-rupee to two-rupee coins is...
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 200, which is four times the runs scored by B. Fi...
A is thrice as efficient as B and C is twice as efficient as B. What is the ratio of number of days taken by A, B and C when they work individually?
