Why does a large fire in the open appear to be fanned by strong winds?
A fire in the open seems fanned by winds because hot air rises and cooler air rushes in to replace it, intensifying the flames.
There are some assistants and officers in an office, if 15 assistants leave then there are 2 officers for each assistant. After this again 45 officers g...
The monthly salary of Anuj to Bisht is in the ratio 4:3, and the monthly income of Bisht to Chetan is in the ratio 2:1. If the difference between Chetan...
6 years ago ratio of the ages of the two persons A and B was 5:2. 4 years hence the ratio of their ages will be 7:4. Find the present age of B.
In two alloys, the ratio of iron and copper is 4: 3 and 6: 1, respectively. If 28 kg of the first alloy and 56 kg of the second alloy is mixed
In a college the ratio of boys and girls are in the ratio 6:7. 60% girls and 25% boys were absent. Find the girls present if the total number of student...
If x+3, x-2, 6 and 5 are in proportion then find the mean proportional to x and 9x2.
Find 'X' if the below three numbers are in proportion.
2.6, 1.3, X
Two numbers are in the ratio 6:5. After adding 3 and 5 to them respectively the ratio becomes 2:3. Find the bigger number.
If A:B = 3:4 and B:C = 5:7, then find the value of A:B:C.
'F' distributed sweets among his four children and retained some for himself. The three eldest girls received sweets in the ratio of 3:11:7. The total n...
