A person needs 6 steps to cover a distance of one slab. if he increases his foot length(step length) by 3 inches he needs only 5 steps to cover the slabs length. what is the length of the each slab?

A garrison of 3300 men has provisions for 32 days, when given at a rate of 850 grams per head. At the end of 7 days a reinforcement arrives and it was found that now the provisions will last 8 days less, when given at the rate of 825 grams per head. How, many more men can it feed?

From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen taking at least one green and one blue ball?

Three pipes, A, B, and C are attached to a tank. A and B can fill it in 20 and 30 minutes respectively while C can empty it in 15 minutes.If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?

A person walking \(5\over6 \) of his usual rate is 40 minutes late. What is his usual time?

The minute hand of a clock overtakes the hour hand at intervals of 64 minutes of correct time. How much a day does the clock gain or lose?

Solve for \(x\) and \(y\):

\({1\over x} – {1\over y} = { 1\over 3}\) ,

\({1\over x^2} + {1\over y^2} = {5 \over 9}\)

Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce it's consumption so as to keep the expenditure fixed?

Find the sum of the first 14 terms for a sequence starting with 2, ending with 120 and common difference 2.

Find the difference between last and last but one term in the Sequence 1, 9, 17, 25… which has 40 terms in total…

Find the 7th term in the series 4,8,16…

Find the sum of the first 5 terms in 3,9,27