15 software functions are there. It is known that atleast 5 of the m are defective. What is the probability that if three functions are chosen and tested, no errors are uncovered.
A small town's industries have a total turnover of Rs. 25,00,000. If the town council plans to raise Rs.170,000 through octroi levy, what % levy should it charge on the industries?
X and Y are partners in a business. X invests 300 for 12 months and Y invested 600 for 6 months. If they gain a profit of 700 at the end of one year, what is X's share?
A contractor employed 200 men to complete a strip of highway in 200 days. After 150 days he found that only 3/5th of the strip is complete. How many additional men should be employed to complete the work on time?
A sum of money doubles itself in 4 years at simple interest, in how many years, it would become 7 times of itself?
720 buses operate from a depot, but 168 are being repaired. What percentage of the total that are in service?
1/3 of girls and 1/2 of boys is goto canteen. What factor & total no. of class mates goto canteen.
15 lit of water containing 20 % of alcohol ,then added 5 lit of water .What is the % of alcohol?
A worker pay Rs20 a day ,he works 1,1/3,2/3,1/8,3/4 in a week.What is the total amount paid to the worker.
Cost of an item is Rs 12.60 ,profit is 10% over selling price.
If PQRST is a paralellogram .What is the ratio triangle PQS & PQRST.
Price of product is reduced by 30%. What % should be increased to make it 100 % ?
There is square of side 6 cm .A circle is inscribed inside the square Find the ratio of area of circle to the squqre .
There six red shoes & 4 green shoes .If two of the shoes are drawn.What is the probability of getting two red shoes.
Two candles of equal lengths and diff thickness are there. The thicker one last 6 hrs ,the thinner 2 hrs less than thicker .Ramesh lit the two candle at same time , when he went to bed he saw that thicker one is twice the length of thinner one. For how long Ramesh lit the candles.