Lux (lx) Lux is basically the unit of illumination and is equal to one lumen per square metre.
There are 100 students in a particular class. 60% students play cricket, 25 % play football and 15% play both the games. What is the number of students ...
The respective ratio of monthly income of A to monthly income of B is 13:14, and A’s saving is (100/21)% more than B’s saving. Find the expenditure ...
Rajesh spent 48% of his monthly income on food and 52% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
Alloy A contains copper and zinc in the ratio 4:5 and alloy B contains copper and zinc in the ratio 7:2. A and B are taken in the ratio 7:4 and melted t...
In 2011, the total population of a village was 5280, Out of which 30% were female. In 2012, the total population increased by 10% in comparison to the p...
Among the 720 employees in the office, 30% engage exclusively in playing cricket, and 40% participate in both cricket and chess. If 20% of the employees...
A man invested all his current month income in starting of a new business in which he spends 40% in advertisement 20% of remaining in furniture 10% of r...
If the radius of the base of a right circular cylinder is increased by 20% and the height is decreased by 30%, then what is the percentage increase/decr...
When a train starts it is carrying 320 passengers. At the first station 12 passengers got down and 42 passengers get into the train. At the second stati...
Monthly income of A is Rs. 5500 and he saves 34% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is inc...
