For the following questions answer them individually
In a class of 92 students, the ratio of the number of boys to that of girls is 12:11. The average score of the girls, in a test, is $$33\frac{1}{3}\%$$ more than that of boys. If the average score of all students is 80, then what is the average score of girls?
The value of $$\frac{6.25+\frac{6}{7}of21-3}{\frac{3}{4}of (15.8 -3.4)+5\times2.39}$$ is:
Let x be the largest 4-digit number which is divisible by each of 16, 21, 24 and 28. The sum of the digits of X is:
A train covers a distance of 108 km at a certain speed. If its speed is increased by $$18 \frac{km}{hr}$$, it would take 18 minutes less to cover the same distance. What is the original speed (in $$\frac{km}{hr}$$) of the train ?
What is the mean of the median and range of the data:
45, 40, 38, 60, 55, 36, 31, 52, 42, 44 ?
The marked price of an article is ₹3,600. Two sucessive discounts of x% and 15% are offered on it during a sale. If the selling price of the article is ₹2,448, then the value of x is:
By seelling an article for ₹720, a shopkeeper gains 20%. If he sells it for ₹210, what is his gain or loss percentage ?
Study the pie-chart which shows the sales distribution of products A, B, C, D and E of a company XYZ in 2019, and answer the question that follows.
In the total number of units of the products sold in 2020 is 20% more than that in 2019, and the sales distribution of all the products remain the same, then what will be the difference between the number of units of products E and D sold in 2020 ?
A and B can complete a work in 12 days and 20 days, respectively They work together for 4 days. C alone completes the remaining work in 14 days. B and C together can complete the same work in:
A person can row at 10 km/hr in still water. The speed of the stream is $$1\frac{1}{9}$$ m/sec. The time (in hours) taken by him to row a distance of 72 km upstream is: