A cistern can be filled by a tap in 6 hours and emptied by an outlet pipe in 7.5 hours. How long will it take to fill the cistern if both the tap and the pipe are opened together?
A sum of Rs. 7,560 is divided between A, B and C such that if their shares are diminished by Rs. 400, Rs. 300 and Rs. 260, respectively, then their shares are in the ratio 4 ∶ 2 ∶ 5. What is the original share of B?
P and Q starts a business with investment of Rs. 28000 and Rs. 42000 respectively. P invests for 8 months and Q invests for one year. If the total profit at the end of the year is Rs. 21125, then what is the share of P?
A and B starts a business with investment of Rs. 28000 and Rs. 42000 respectively. A invests for 8 months and B invests for one year. If the total profit at the end of year is Rs. 21125, then what is the share of B?
K, L and M invest sum in the ratio 15 : 20 : 27 respectively. If they earned total profit of Rs. 10230 at the end of year, then what is the difference between share of K and L?
Mohit and Sumit start a business with investment of ₹ 74000 and ₹ 96000 respectively. If at the end of the year they earn profit in the ratio of 5 : 8, then what will be ratio of the time period for which they invest their money?
P, Q, and R invest Rs. 14000, Rs. 18000 and Rs. 24000 respectively to start a business. If the profit at the end of the year is Rs. 25480, then what is the difference between the profit share of P and Q?
X and Y enter into a partnership with capital in the ratio 3 ∶ 5 After 5 months X adds 50% of his capital, while Y withdraws 60% of his capital. What is the share (in Rs. lakhs) of X in the annual profit of Rs. 6.84 lakhs?
10 years ago, the ratio of the ages of A and B was 5 ∶ 9. 15 years from now, the ratio of their ages will be 15 ∶ 17. What will be A's age 15 years from now?
Kohli is 3 years younger than Rohit. If the ratio of ages of Kohli and Rohit is 7 ∶ 8, then what is the age of Kohli?
The ratio of the father's age to his son's age is 5 : 3. The product of the numbers representing their ages is 960. The ratio of their ages after 6 years will be:
The ages of Gyanendra and Arbind are in the ratio 6 ∶ 5. If the sum of their ages is 55 years, then what will be the ratio of their ages after seven years from now?
Eighteen years ago, a man was three times as old as his son. Now, the man is twice as old as his son. The sum of the present ages of the man and his son is
615 coins consist of one rupee, 50 paise and 25 paise coins. Their values are in the ratio of 3 : 5 : 7, respectively. Find the number of 50 paise coins.
The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 106. Find the average of the remaining two numbers?
If the radius of the base of a right circular cylinder is decreased by 27% and its height is increased by 237%, then what is the percentage increase (closest integer) in its volume?
In a race, an athlete covers a distance of 312 m in 104 sec in the first lap. He covers the second lap of the same length in 52 sec. What is the average speed (in m/sec) of the athlete?
A cuboid has dimensions of length 10 cm, width 5 cm and height 8 cm. A cube with side length 5 cm is cut out from one of the faces of the cuboid. What is the remaining volume of the cuboid?
How many seconds will a boy take to run one complete round around a square field of side 55 metres, if he runs at a speed of 18 km/h?
A man riding on a bicycle at a speed of 93 km/h crosses a bridge in 36 minutes. Find the length of the bridge?
Safia calculated his loss percent as % on cost price. The ratio of selling price to cost price will be:
Arun buys an old car for ₹4,75,000 and spends ₹80,000 on its repairs. If he sells the car for ₹5,85,000, find his gain percentage. (Rounded up to two decimal places)
In ∆LMN, medians MX and NY are perpendicular to each other and intersect at Z. If MX = 20 cm and NY = 30 cm, what is the area of ∆LMN (in cm² )?
The marked price of a book is 2,400. A bookseller gives a discount of 15% on it. What will be the cost price (in) of the book if he still earns a 20% profit?
The population of a town increases by 16% each year. If the population at the beginning of this year is 18,750, what will the population be at the end of next year?
The sum of five numbers is 655. The average of the first two numbers is 75 and the third number is 128. Find the average of the remaining two numbers?
Jitesh and Kamal can complete a certain piece of work in 18 and 17 days, respectively, They started to work together, and after 5 days, Kamal left. In how many days will Jitesh complete the remaining work?
A pipe can fill a tank in 6 hours, and another pipe can fill the same tank in 8 hours. If both pipes are opened at the same time, how long (in hours, rounded off to one decimal place) will it take to fill the tank?
A pipe can fill a tank in 9 hours. Another pipe can empty the filled tank in 27 hours. If both the pipes are opened simultaneously, then the time (in hours) in which the tank will be two-third filled, is:
A sum, when invested at 10% simple interest per annum, amounts to ₹4080 after 2 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 1 year?