What is the average number of hats sold by store N during January, March May and June

Number of hats sold by store M during January is what percent  of the total number of hats sold by the store N during March and April together

16000/- was invested for three years, partly in Scheme A at the rate of 5% simple interest per annum and partly in Scheme B at the rate of 8% simple interest per annum. Total interest received at the end was INR 3480/-. How much sum of money was invested in Scheme A

10 men can finish a piece of work in 15 days. 8 women can finish the same piece of work in 25 days. Only 10 women started working and in few days completed certain amount of work. After that 3 men joined them. The remaining work was completed by 10 women and 3 kmen together in 5 days. After how many days 3 men joined 10 women

A sells an item at 20% profit to B. B sells it to C at 10% profit. C sells it to D at INR 116/- profit. Difference between the cost price of D and cost price of A was INR 500/-. How much did B pay to A for the item

The length of a rectangle is 4m more than the side of a square and the breadth of the rectangle is 4m less than side of the same square. If the area of the square is 576 sq m, what is the area of the rectangle ? (in sq m)