For the following questions answer them individually
The average of ten numbers is 18.2. the average of the first four numbers is 16.6 and that of the last seven numbers is 20.8. If the $$4^{th}$$ number is excluded, then the average of the remaining numbers is (correct to one decimal place):
The total surface area of a solid right circular cylinder of height 13cm, is 880 $$cm^{2}$$. Its volume (in $$cm^{2}$$) is 11k. The value of k is: (Taken $$\pi=\frac{22}{7}$$)
The average of the 2-digit numbers 37, 45, 6x and x6 is 48. What is the average of $$(4x+3)$$ and $$(x+7)$$?
The ratio of the speeds of A and B is 2:5. To cover a certain distance, if A takes 15 minutes more than B, then how much time (in minutes) will B take to cover the same distance?
A person saves 28% of his income. If his income increases by 20% and the expenditure reduces by 5%, then his savings incrased by x%. The value of x is closest to:
When x is subtracted from each of 24, 30, 36 and 46, the numbers so obtained in this order, are in proportion. What is the mean proportional between $$(2x+3)$$ and $$(3x+2)$$?
A sold an article to B at a loss of 20%, and B sold it to C at a profit of 32%. C sold it to D at a loss of 20% If A's loss is ₹35 less than that of C, then B boght the article for:
There is a rectangular plot, 120m long and 98m wide, with semi-circular flower beds along the breath on both sides of the plot. The cost of putting a fence all around the plot at ₹16.50 per m is: (Taken $$\pi=\frac{22}{7}$$)
By selling an article for ₹820, Abhi looses 18%. To gain 25.5%, he should sell it for:
What least number must be subtracted from 2963 so that the resulting number when divided by 9, 10 and 15, the remainder in each case is 5?
