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Retina: a light sensitive layer that lines the interior of the eye. It is composed of light sensitive cells known as rods and cones.
In an election between two candidates, winner got 40% of total valid votes. If total number of votes cast were 1000 out of which 6% were invalid, then f...
A and B have monthly incomes in the ratio of 6:5, respectively. Both save the same amount each month. A's monthly expenses are five times B's monthly sa...
The price of a laptop undergoes two consecutive changes over two months. In the first month, its price decreases by 10%, followed by an increase of 20% ...
A company allowed 9% commission on the total sales made by salesman and a bonus of 1% on the sales over Rs. 20000. If the salesman deposited Rs. 63200 i...
In a bio gas plant the population of yeast bacteria increases at a rate of 19% per annum but there is an additional annual increase of 1% in population ...
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 ...
Rahul saves Rs. 6800 more if he spends 70% of his income instead of 90%. Find the savings of Sumit whose income is 25% more than that of Rahul, and spen...
If 40% of 70 is x% more than 30% of 80, then find 'x'.
A 16-liter salt solution contains 6% salt. If 4 liters of water are evaporated by boiling the solution, what is the new percentage of salt in the remain...
Two numbers are less than a third number by 20% and 24% respectively. Find the percent by which the second number is less than the first.