A car travels 101 km in the first hour and 55 km in the second hour. What is the average speed (in km/h) of the car for the whole journey?
A sum, when invested at 10% simple interest per annum, amounts to ₹4560 after 2 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 1 year?
A cylindrical rod has an outer curved surface area of 8800 cm² . If the length of the rod is 87 cm, then the outer radius (in cm) of the rod, correct to two places of decimal, is: (π=22/7)
The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 129. Find the average of the remaining two numbers?
The ages of Misha and Kamal are in the ratio of 4 : 3 respectively. After 9 years the ratio of their ages will be 7 : 6. What is the difference in their present ages?
Advait has to reach Kanpur which is 947 km away in 19 hours. His starting speed for 6 hours was 38 km/hr. For the next 70 km his speed was 35km/hr. By what speed he must travel now so as to reach Kanpur in decided time of 19hours?
Saritha purchased a pre-owned sewing machine for ₹34,999 and spent ₹4,000 on repairs and ₹1,000 on transport. She sold it with 15% profit. At what price did she sell the machine?
A pipe can fill a tank in 9 hours. Another pipe can empty the filled tank in 12 hours. If both the pipes are opened simultaneously, then the time (in hours) in which the tank will be two-third filled, is:
Two trains of equal length are running on parallel lines in the same direction at speeds of 90 km/h and 51 km/h. The faster train passes the slower train in 36 seconds. The length of each train is:
The marked price of a smart watch is ₹4,000 and during a year end sale the seller allows a discount of 75% on it. Find the selling price (in ₹) of the smart watch.
The list price of a smart fan is ₹5,600 and it is available to a retailer at 25% discount. For how much should a retailer sell it to gain 15%?
The base of a parallelogram is increased by 8% and height is increased by 4%. Find the net increase percentage in its area.
The ages of Deeksha and Amit are in the ratio of 7 : 5 respectively. After 4 years the ratio of their ages will be 4 : 3. What is the difference in their present ages?
The average of the marks of 14 students in a class is 66. If the marks of each student are doubled, find the new average?
If the radius of the base of a right circular cylinder is decreased by 20% and its height is increased by 134%, then what is the percentage increase (closest integer) in its volume?
On the marked price of an item, two successive discounts of 10% each are offered and a profit of 10% is earned. The marked price of the item is approximately _____ times its cost price
5 men can complete a piece of work in 16 days while 2 women can do it in 20 days. In how many days can 4 women and 2 men complete it?
How many litres of milk with 24% concentration are to be mixed with 18 litres with 72% concentration to get a mixture with 36% concentration?
Kanchan bought 52 books for Rs 1130 from one shop and 47 books for Rs 905 from another. What is the average price (in Rs) he paid per book ?
A car travels 281 km in the first hour and 163 km in the second hour. What is the average speed (in km/h) of the car for the whole journey?
The area of the curved surface of a cone is 195π . If the slant height of the cone is 12 cm, find the radius of the base
In covering a distance of 56 km, Anirudh takes 5 hours more than Burhan. If Anirudh doubles his speed, then he would take 2 hour less than Burhan. Anirudh's speed is:
A merchant sells 60 metre of cloth and gains selling price of 15 metre. Find the gain percent (rounded off to 1 decimal place).
Two pipes can fill a tank in 30 hours and 40 hours, respectively. Find the time (in hours) taken to fill the tank when both the pipes are opened simultaneously.
A sum, when invested at 10% simple interest per annum, amounts to ₹3360 after 2 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 1 year?
In what ratio should sugar costing ₹78 per kg be mixed with sugar costing ₹36 per kg so that by selling the mixture at ₹86.8 per kg, there is a profit of 24%?
What is the greatest number which, when it divides 2987, 3755 and 4331, leaves a remainder of 11 in each case?
A person sold 20 dining tables for ₹5,39,000; thereby gaining the cost price of five dining tables. Find the cost price of each dining table