Question
If 180 meter long train crosses a pole in 9 seconds,
find the speed of train in kilo meter/hour.Solution
Distance =180m, time =9sec Speed =180/9=20m/sec 20×18/5 km/h =72km/h
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.
Ratio of males to females in village ‘A’ and village ‘B’ is 9:10 and 17:18, respectively and number of females in village ‘B’ is 25% more th...
Divide ₹2,800 into three parts in the ratio of 2 : 3 : 5 such that the difference between the largest and smallest part is added to the middle part. W...
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...
What must be added to each term of the ratio 5:13 so that it may equal to 2:3?
Two numbers are respectively 20% and 10% more than a third number. Find the ratio of two numbers.
'A', 'B' and 'C' distributed Rs. 720 among themselves in the ratio 4:3:2, respectively. 'A' gave some amount to 'B' such that new amount with 'B' is thr...
Two years ago the ratio of annual salary of three friends P, Q and R is 4 : 3 : 5. Every year since then the salary of P, Q and R increases by 10%, 12% ...
In a store, there is an inventory of 4,800 caps. Black caps constitute 41(2/3) % of this total, with the rest being blue caps. The caps that have been s...
- The mean proportional of 10 and 40 is _____.
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