For the following questions answer them individually
The lengths of the three sides of a triangle are 30 cm, 42 cm and $$\times$$ cm. Which of the following is correct?
The following pie chart shows the monthly sale of laptops of five companies A, B, C, D and E in a store.
If 2,500 laptops were sold by the store in a month, then what is the difference between the number of laptops sold of Company A and that of Company C?
A, B and C run simultaneously, starting from a point, around a circular track of length 1200m, at respective speeds of 2m/s, 4m/s and 6m/s. A and B run in the same direction, while C runs in the opposite direction to the other two. After how much time will they meet for the first time?
A sum of money invested at a certain rate of simple interest per annum amounts to ₹14,522 in seven years and to ₹18,906 in eleven years. Find the sum invested (in ₹).
If the side of an equilateral triangle is increased by 34%, then by what percentage will its area increase?
A,B and C can do a piece of work in 30 days, 40 days and 50 days, respectively. Beginning with A, if A, B and C do the work alternatively then in how many days will the work be finished?