A bus travelling at 80 km/h completes a journey in 14 hours. At what speed will it have to cover the same distance in 20 hours?

In a class the average marks obtained in a science test by a group of 12 students is 70, by another group of 15 students is 85 and that by another group of 18 students is 90. Find the average marks of all the students.

Prakash and Vinesh can complete a certain piece of work in 10 and 8 days, respectively, They started to work together, and after 3 days, Vinesh left. In how many days will Prakash complete the remaining work?

A shopkeeper marks up an item by 25% above its cost price. If the cost price of the item is ₹500, what is the marked price (in ₹)?

If 18 , 36 , 14 , and y are in proportion, then the value of y is

A person can complete a journey in 9 hours. He covers the first one-third part of the journey at the rate of 35 km/h and the remaining distance at the rate of 28 km/h. What is the total distance (in km) of his journey?

Vijay can do a piece of work in 4 hours. Ajay can do it in 28 hours. With the assistance of Amit, they completed the work in 3 hours. In how many hours can Amit alone do it?

Three partners invested in a business in the ratio 4:6:8. They invested their capitals for 8 months, 4 months and 5 months, respectively. What was the ratio of their profits?

അസ്മിത ₹4,800 ന് ഒരു സാരി വാങ്ങി, ഒരു വർഷത്തിനുശേഷം ₹4,200 ന് വിറ്റു. അവളുടെ നഷ്ട ശതമാനം കണ്ടെത്തുക.

A sum, when invested at 10% simple interest per annum, amounts to ₹3120 after 3 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 2 years?

A can do a piece of work in 12 days. B can do it in 18 days. With the assistance of C, they completed the work in 4 days. C alone can do it in ______________days.

A conical canvas tent with height 14 units and radius 7 units requires__________________ square units of canvas to make.

A clay cylinder of height 42 cm is converted into a cone of the same radius as that of the cylinder. If the volume of the cylinder is 52,800 cm3 , then the radius (in cm) of the cone is:(Use π =22/7)

അഞ്ച് സംഖ്യകളുടെ ആകെത്തുക 655. ആദ്യത്തെ രണ്ട് സംഖ്യകളുടെ ശരാശരി 76 ഉം മൂന്നാമത്തെ സംഖ്യ 107 ഉം ആണ്. ശേഷിക്കുന്ന രണ്ട് സംഖ്യകളുടെ ശരാശരി എത്ര?

Kavya has to reach Bhopal which is 1011 km away in 19 hours. His starting speed for 7 hours was 25 km/hr. For the next 152 km his speed was 19km/hr. By what speed he must travel now so as to reach Bhopal in decided time of 19hours?

A girl goes to school at a speed of 10 km/hr. She comes back with a speed of 40 km/hr. Find her average speed for the whole journey.

In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 4.4% per hour. Find the count of bacteria at the end of 2 hours if the count was initially 8,05,00,000.

The LCM of three numbers is 2400. If the numbers are in the ratio of 3 : 4 : 5, find the greatest number among them.

Kiran can do a certain piece of work in 15 days. Kiran and Garima can together do the same work in 10 days, and Kiran, Garima and Mehak can do the same work together in 9 days. In how many days can Kiran and Mehak do the same work?

Devvrat sold a commodity at a loss of 3%. If he would have been able to sell it at a profit of 15%, he would have received ₹1,494 more. What was the cost price (in ₹) of the commodity?

A principal amount of ₹8,000 is invested at an annual interest rate of 5% compounded half-yearly. What will be the compound interest earned after 4 years? [Use (1.025)8 = 1.2184]

Mohan, Rahul, and Geeta enter into a partnership. They invest 35,000, ₹75,000, and 1,05,000, respectively. At the end of the first year, Rahul withdraws 25,000, while at the end of the second year, Geeta withdraws 75,000. In what ratio will the profit be shared at the end of 3 years?

Arun’s salary is increased by 20% in January and his salary is again increased by 35% in the month of November. What is the overall percentage increase in his salary?

If 35% of k is 15 less than 3600% of 15, then k is:

A tap can fill a tank in 8 hours. After half the tank is filled, four more similar taps are opened. What is the total time taken to fill the tank completely?

The average of first 109 even numbers is

Evaluate: 41 - [21 - {11 - (15 - 6 ÷ 2 × 2)}]

ഒരു ക്ലാസിലെ 15 വിദ്യാർത്ഥികളുടെ ശരാശരി 43 ആണ്. ഓരോ വിദ്യാർത്ഥിയുടെയും മാർക്ക് ഇരട്ടിയാക്കിയാൽ, പുതിയ ശരാശരി എത്ര?

Find the value of A for which the number 7365A2 is divisible by 9.

The monthly incomes of two friends Chetan and Vipul, are in the ratio 5 : 7 respectively and each of them saves ₹72000 every month. If the ratio of their monthly expenditure is 1 : 3, find the monthly income of Chetan(in ₹).

A trader offers a 10% discount on the marked price and provides 3 articles free for every 12 articles purchased, thereby earning a profit of 20%. Find the percentage by which the marked price is increased above the cost price, correct to two decimal places.

The length of a rectangular garden is 20 m and its breadth is 8 m. Find the length of the diagonal of a square garden having the same area as that of the rectangular garden.

മണിക്കൂറിൽ 43 കിലോമീറ്റർ വേഗതയിൽ സൈക്കിളിൽ സഞ്ചരിക്കുന്ന ഒരാൾ 54 മിനിറ്റിനുള്ളിൽ ഒരു പാലം കടക്കുന്നു. പാലത്തിന്റെ നീളം എത്ര?

അഞ്ച് സംഖ്യകളുടെ ആകെത്തുക 655. ആദ്യത്തെ രണ്ട് സംഖ്യകളുടെ ശരാശരി 78 ഉം മൂന്നാമത്തെ സംഖ്യ 123 ഉം ആണ്. ശേഷിക്കുന്ന രണ്ട് സംഖ്യകളുടെ ശരാശരി എത്ര?

ഒരു വസ്തുവിന്റെ അടയാളപ്പെടുത്തിയ വില ₹5,800 ആണ്. ഒരു ഉപഭോക്താവിന് തുടർച്ചയായി രണ്ട് കിഴിവുകൾ ലഭിക്കും, ആദ്യത്തേത് 12%. ഉപഭോക്താവ് അതിന് ₹4,695.68 നൽകിയാൽ രണ്ടാമത്തെ കിഴിവ് ശതമാനം കണക്കാക്കുക.

How many seconds will a boy take to run one complete round around a square field of side 87 metres, if he runs at a speed of 3 km/h?

The sum of five numbers is 655. The average of the first two numbers is 75 and the third number is 114. Find the average of the remaining two numbers?

Three partners invested in a business in the ratio 1:9:8. They invested their capitals for 11 months, 6 months and 2 months, respectively. What was the ratio of their profits?

At what rate percentage per annum (correct to one place of decimal) will ₹17,280 amount to ₹23,520 in 2 years, if the interest is compounded annually?

The height of a conical vessel is 7 cm. If its capacity is 6.6 litres of milk. Find the diameter of its base.

A shopkeeper has announced 14% rebate on the marked price of an article. If the selling price of the article is ₹688, then the marked price of the article will be:

Anil can do a piece of work in 4 hours. Ashok can do it in 8 hours. With the assistance of Robin, they completed the work in 2 hours. In how many hours can Robin alone do it?

If A can complete a job in 15 days and B can complete the same job in 20 days, then how many days (rounded up to the nearest two decimal places) will it take for both A and B to complete the job together?

Two numbers are in the ratio 7 : 8. If the HCF is 4, find the greater number

A retailer sold a laptop at ₹27,000 by giving two continuous rebates of 20% and 10%. What is the marked price?