For the following questions answer them individually
Shivam is 20 percent less efficient than Vivek. If Vivek can make a helmet in 12 days, then in how many days can Shivam make the same helmet?
If interest is being compounded half yearly and rate of interest is 20 percent per annum, then in how much time Rs. 15000 will become Rs. 19965 at compound interest?
What is the value of $$\sqrt{0.33 \times 0.33 + 0.6 \times 0.6 + 1.2 \times 0.33}$$Â $$?$$
If 80 percent of total article are sold at a loss of 25 percent and remaining article are sold at a profit of 20 percent, then what will be the overall loss percentage?
The ratio of present ages of Neelam and Rajni is 6 : 5. After six years, their ages will be in the ratio of 13 : 11. What is the present age of Rajni?
A person lent certain sum of money at the annual rate of 5 percent on simple interest. In 4 years, the interest amounted to Rs. 800. What is the sum lent?
A merchant sold an article at 20% loss. If he had sold it for Rs. 390 more, 6% would have been gained on the cost price.
What is the cost price of the article?
Cost of two types of rice is Rs. 60 per kg and Rs. 84 per kg. If both the rice is mixed together in the ratio 1 : 1, then what should be the price of mixed variety of rice per kg?
The length of two parallel sides of a trapezium are 25 metre and 30 metre. If its height is 20 metre, then what is the area of the trapezium?
The speed of a boat in upstream is 8 km/hr and the speed of stream is 4 km/hr. The boat covers a distance of x km in upstream and x km in downstream. If the total time taken by the boat is 9 hours, then what is the value of x?
