Shyam covers a distance of 400 km in 5 hours. He traveled for some time at a speed of 85 km / h and the rest at a speed of 55 km / h. How long did he travel at high speed?

Of the three numbers, the ratio of the first and the second is 8 : 9 and that of the second and third is 3 : 4. If the product of the first and third number is 2400. then the second number is: 

Divide Rs.198 in the ratio 2:3:5:8 The rupees in the respective ratios are given by: 

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number: 

If the profit on selling an article for Rs. 425 is the same as the loss on selling it for Rs. 355, then the cost price of the article is 

In how many different ways can the letters of the word ‘DESIGN’ be arranged so that the vowels are at the two ends? 

a, b, c, d, e, f, g are consecutive even numbers. j, k, l, m, n are consecutive odd numbers. The average of all the numbers is: 

The number of pairs of positive integers whose sum is 99 and HCF is 9 is: