For the following questions answer them individually
The average weight of 6 people increased by 2.5 kg when a new person came in place of other person weighing 55 kg. what can be the weight of new person (in kg)?
The mean of 100 items is 47.It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50, respectively. The correct mean is:
Two numbers are, respectively, 17% and 50% more than a third number. The ratio of the two numbers is:
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 can the work be completed?
A money was distributed among A, B and C in the ratio of 5:6:7 respectively. If B gave Rs. 400 to C, then the ratio among the distribution of A, B and C will be 2:3:4. Find out the sum of the initial money of A and C.
The value of $$5\frac{5}{29}-\left[\frac{15}{4}\div\left\{\frac{3}{4}\times\left(\frac{3}{2}-\frac{1}{5}-\frac{1}{3}\right)\right\}\right]$$ is:
A fruit seller has a sale of ₹10,435, ₹9,927,₹10,855 ₹10,230 and ₹9,562 for five consecutive months.How much sale (in ₹) must he have in the sixth month so that he gets an average sale of ₹10,500?
If A and B can do a piece of work in 20 days,and A alone can do the same work in 30 days, then in how many days can B alone complete the same work?
A incomes of A and B are in the ratio 3:4 ,and their expenditures are in the ratio 9:5. If the income of A is equal to three times the expenditure of B, then what is the ratio of the savings of A and B?
A hall is 18 m long and 12 m board. If the some of the areas of the floor and the ceiling is equal to the sum of the areas of the four walls,the volume (in $$m^{3}$$) of the hall is:
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