The sum of the digits of a 2-digit number is 8.If the digits are reversed,the number is decreased by 54. Find the Number. The length & breadth of a rectangle are 10 cm. & 5 cm. resp.The length is increased by 10% & breadth is increased by 5%. What is the new area of the rectangle? A person drives for 4 hours at a speed of 10 km.per hour and for 6 hours at a speed of 20 km.per hour.Find the average speed. A certain sum of money gives Rs.500 at 5% S.I. for 1 year. What is the C.I.at the same rate at the end of 2 years ? The average height of 4 friends is 168 cm.John,whose height is 170cm.,leaves the group.What is the new average? A sum of money triples itself in 6 years.What is the compound rate of interest? Ashish sold 2 paintings for Rs.200 a piece.On one he makes a profit of 10% & on the other he makes a loss of 10%. Find the overall profit or loss. A person travels 285 km.in 6hrs. In the 1st part of the journey,he travels at 40 km./hr.by bus.In the 2 nd part ,he travels at 55km./hr.by train.How much distance does he travel by train? When the selling price of a watch is Rs.130,the loss percentage is 25%.What is the gain or loss percentage if S.P. is increased to Rs.182 ? A sum of money is divided bw.2 persons in the ratio 3:5.If share of 1 person is Rs.20 less than that of another,find the sum. 5 years ago,father’s age was 5 times his son’s age. After 2 years,it becomes 3 times.What is the ratio of their present ages? A man buys 2 horses for Rs.1350.He sells one at a loss of 6% & the other at a gain of 7.5%.If on the whole,he neither gains nor loses,what does each horse cost? Two trains start at the same time from A&B and proceed towards B&A at 32km./hr. and 41km./hr. resp.When they meet, it is found that 1 train has moved 45 km.more than the other.Find the distance bw.A&B. Sanju goes to school at 10km/hr and reaches 6min.late.When he travels at 12km/hr,he reaches 9 minutes earlier than the scheduled time. What is the distance of the school from his house? A&B can do a job in 10 days. B&C can do the same job in 15 days.If all the 3 together can do the work in 6 days,then in how many days,can B complete the whole job? 20 men take 10 days to complete a job working at the rate of 5hr/day.How much time would 15 men,who work for 8hr/day take to complete the same job? An inlet pipe alone can fill the whole tank in 10hr.while an outlet pipe can empty the tank in 25 hr.When both the pipes are open,in what time will the tank be filled? The difference bw.2 numbers is 1365.When larger number is divided by the smaller one,the quotient is 6 & the remainder is 15.Find the smaller number. The average marks of 120 students in a class is 35.If the average marks of passed students is 39 & those of failed students is 15,find the number of students who passed? 2 trains are running in opposite directions with speeds 54 & 48 km/hr.If they cross each other in 18seconds,& length of one train is 100m,find the length of other train. In20 litres of a mixture of milk & water,the ratio of milk & water is 5:2.Find the quantity of water to be added in order to make this ratio 3:2. Of the total amount received by Kiran,20%was spent on purchases & 5% of the remaining on transportation.If he is left with Rs.1520,find the initial amount. The C.I. on Rs.30000 at 7%pa for a certain period is Rs.4,347. Find the period. By selling a table Aditya earned a profit equal to one fourth of the price for which he bought it. If he sold it for Rs.375,find the C.P.of the table. Rs.3960 is divided among A,B&C such that half of A’s part, one third of B’s part,& one sixth of C’s part are equal. Find B’s part.
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