A. B and C can do a piece of work in 10, 15 and 30 days, respectively. If B and C both assist A on every third day, then in how many days will 40% of the work be completed?
Three articles are bought at ₹180 each. One of them is sold at a loss of 10%. If the other two articles are sold so as to gain 20% on the whole transaction, then what is the gain percentage on the two articles?
Study the given graph and answer the question that follows.
In which year is the percentage increase in the revenue as compared to that in the preceding year the highest?
A field is in the form of a circle. The area of the field is 3850 ,and if the cost of fencing around it is ₹11 per metre, then the cost (in ₹) is: (Take )
What is the difference (in ₹) between the compound interest, when interest is compounded 6-monthly, and the simple interest on a sum of ₹20,000 for 1(1/2) year at 10% p.a.?
A girl spends 80% of her income. If her income increases by 18% and her expenditure increases by 25%, then what is the percentage increase or decrease in her savings (correct to one decimal place)?
The mean of 100 items is 51. It was discovered that three items, which should have been 50, 70, 60, were wrongly read as 40, 20, 50, respectively. The correct mean is:
