The sum of 8 numbers is 840. Find their average.

A number when increased by 50 % gives 2550. The number is:

Seema bought a mobile and laptop at a certain price. She sold the mobile at 10% gain and laptop at 25% gain. She found that the cost price of the mobile is equal to the selling price of the laptop. Find her profit percentage.

f(x,y)=x²y+5y³ ആയാൽ ∂f/∂x =

z= x⁴sin(xy³) ആയാൽ ∂z/∂y കണ്ടുപിടിക്കുക.

z= x⁴sin(xy³) ആയാൽ ∂z/∂x കണ്ടുപിടിക്കുക.

y=x³logx ; d²y/dx²=

f(x) = x³-3x²+2x-1 എന്ന ഏകദത്തിന്ടെ x=2 എന്ന ബിന്ദുവിലെ അവകലജം ഏത് ?

y=x²+3x+2 ; d²y/dx²=

Find the compound interest on ₹80,000 at 10% per annum for 2 years, compounded annually.

On an item with marked price ₹180, 15% discount and a cashback of ₹25 is offered. The selling price of the item is ₹_____.

The average of first 103 even numbers is

After 63 litres of petrol was poured into an empty storage tank, it was still 1% empty. How much petrol (in litres, rounded off to two decimal place) must be poured into the storage tank in order to fill it?

Find the area (in cm²) of a rhombus whose diagonals are of lengths 47 cm and 48 cm.

Nirmal bought 52 books for Rs 1130 from one shop and 47 books for Rs 900 from another. What is the average price (in Rs) he paid per book ?

A number 30000 is increased successively by 10%, 20% and 30%. Find the overall increase in percentage.

A man riding on a bicycle at a speed of 21 km/h crosses a bridge in 6 minutes. Find the length of the bridge?

Find the surface area of a sphere whose diameter is equal to 88 cm

2% of 5% of a number is what percentage of that number?

How many numbers up to 310 are divisible by 8?

Evaluate: 41 - [36 - {48 ÷ 2 - (6 - 12 ÷ 2) ÷ 2}]

The sum of 8 numbers is 804. Find out the average.

എ, ബി എന്നിവർ ചേർന്ന് ഒരു പണി 12 ദിവസം കൊണ്ടു വര്സിക്കുന്നു. ബി, സി 15 ദിവസവും, എ, സി 20 ദിവസവും കൊണ്ട്. എ, ബി, സി മൂന്ന് പേരും ചേർന്ന് പണി നടത്തി തികയ്ക്കാൻ എത്ര ദിവസം?

A solid sphere of diameter 6 cm is melted and then cast into cylindrical wire of radius 0.3 cm. Find the length of the wire.

Abhay and Bharat can complete a certain piece of work in 9 and 11 days, respectively, They started to work together, and after 3 days, Bharat left. In how many days will Abhay complete the remaining work?

The monthly incomes of two friends Amit and Gopal, are in the ratio 5 : 7 respectively and each of them saves ₹72000 every month. If the ratio of their monthly expenditure is 2 : 3, find the monthly income of Amit(in ₹).

Which of the following numbers is the greatest of all?

What is the rate percentage per annum if ₹4,800 amounts to ₹5,043 in 2 years when interest is compounded yearly?

A 250 m long train overtakes a man moving at a speed of 7 km/h (in same direction) in 36 seconds. How much time (in seconds) will it take this train to completely cross another 415 m long train, moving in the opposite direction at a speed of 82 km/h?

The sum of 10 numbers is 276. Find their average.

A bus travelling at 55 km/h completes a journey in 8 hours. At what speed will it have to cover the same distance in 20 hours?

The average of first 111 even numbers is

In a race, an athlete covers a distance of 366 m in 61 sec in the first lap. He covers the second lap of the same length in 183 sec. What is the average speed (in m/sec) of the athlete?

The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 110. Find the average of the remaining two numbers?

Which of the following statements is NOT correct?

Calculate the compound interest on ₹72,000 at the rate of 9% per annum for 18 months when interest is compounded half yearly (rounded off up to the nearest ₹).

There are 4182 students in a school and the ratio of boys to girls in the school is 23 : 28, then find the number of boys in school.

An amount of ₹165 is divided among three persons in the ratio of 5 : 7 : 3. The difference between the largest and the smallest shares (in ₹) in the distribution is:

8 If two successive discounts of 8% and 9% are given, find the total discount percentage.

The difference of two numbers is 1/5 of their sum, and their sum is 45. Find the LCM.

6 Prem sells an article to Ria at a profit of 20%. Ria sells the article back to Prem at a loss of 20%. In this transaction:

The perimeter of an equilateral triangle ABC is 10.2 cm. What is the area of the triangle ?

The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 104. Find the average of the remaining two numbers?

The price of a TV was ₹55,000 last year, and this year it is ₹42,500. Find the percentage decrease in price. (Rounded up to two decimal places)