X and Y are running towards each other from their houses. X can reach Y’s house in 25 minutes which is half the time taken by Y to run from his house to X’s house. If the two start to run towards each otherat the same time, then how much more time it will be required by Y to reach the middle of houses ?

The work done by a man, woman and child are in the ratio 3: 2:1. If daily wages of 20 men, 30 women and 36 children amount to 78/-, what will be the wages of 15 men, 21 women and 30 children for 18 weeks ?

25,000/- is borrowed at compound interest at the rate of 3% for first year, 4% for 2nd year and 5% for 3rd year. Find the amount to be paid after 3 years.

If x : y = 2 : 3, the value of (3x + 2y) : (2x + 5y) is:

Two successive discounts of 8% and 12% are equal to a single discount of:

The LCM and HCF of two numbers are 84 and 21 respectively. If the ratio of two numbers is 1 : 4, then the larger among two numbers is:

A shopkeeper marks his books at 25% above the cost price. Due to slump in the market, his cost reduces by 5%. And then,to boost his sale, he offered a discount of 8% due to which sales goes up by 25%. Compute the change in the shopkeepers profit.

Simplify the following: (0.3×0.3 + 0.03×0.03 − 0.6×0.03) / 0.54

Brother and sister both appear for an interview. The probability of the selection of brother is 1/8 while the probability of rejection of sister is 4/5. What is the probability that only one of them is selected ?