The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

If A:B = $$ {3\over 4}$$ : $$ {5\over 2}$$  and B:C= $$ {1\over2}:{3\over 5}$$ then what is the ratio of A:B:C=?

Find the value of 13/16 share of land whose 9/7 share is worth 10,116.

It takes 53 seconds to cross a pole at the end of a 110-meter-long train with a speed of 36 km / h. Find the initial distance of the pole from its front end.

The average score obtained by Sandeep in 12 Tests is 25. Rumella has an average of 23 marks so far, but has competed in only 8 Tests. What average will Rumela have to earn in the remaining 4 Tests to be equal to Raghuveer's average?

Working 8 hours a day, Sohan writes a book in 18 days. How many hours per day should he write to write the entire book in 12 days?

When a mobile is sold at 6 percent profit, it gets Rs. 870 more than it is sold at 6 percent loss. So what is the purchase price of mobile?

5.52 – 2.3² + 0.8³ × 0.12 ÷ 0.4⁴ – 3.14 =?