If the average marks of three batches of 30, 50 and 70 students is 55, 70 and 70 respectively, then the average marks of all the students is:

The cash difference between the selling price of an article at a profit of 8 % and 12 % is Rs 3. The ratio of two selling prices is:

What price should Neeraj mark on a shirt that costs 840, so as to earn a profit of 18% after allowing a discount of 16% on the marked price?

Direction: Study the information given below carefully and answer the questions given below.
Three companies A, B and C manufactured two types of bottles viz Steel and Copper. Total number of bottles manufactured by the company is 1000. The ratio between the number of copper bottles manufactured by A and the number of Steel bottles manufactured by B is 13: 17. The total number of Copper bottles manufactured by C is 164. The number of Copper bottles manufactured by B is 25 more than the same type of bottles manufactured by A. The 14.28 % of the number of Copper bottles manufactured by B is equal to the 1/9th of the total number of Steel bottles manufactured by C. The number of Steel bottles manufactured by A is 122 which is 21 less than the number of Copper bottles manufactured by the same company.

Find the difference between the total number of steel and copper bottles manufactured by all the shops.

A rises from his house at 12 noon towards B’s house at a speed of 8 km/hour. After 1 hour, B rides from his house towards A’s at a speed of 7 km/hour. If the distance between the two houses is 68 km, the time when they meet is

Direction: The given Bar Graph Presents the number of different types of vehicles (in lakhs) exported by a company during 2014 and 2015.

Which type of vehicle showed a 32% increase in export in 2015 as compared to that in the previous year? 

If A: B = 4:5 and B:C= 3: 7 . What is the value of C:A?

Let x be the least number which when divided by 8, 12, 20, 28, 35 leaves a remainder 5 in each case. What is the sum of digits of x?