Rupesh bought 52 books for Rs 1130 from one shop and 47 books for Rs 910 from another. What is the average price (in Rs) he paid per book ?

The sum of five numbers is 655. The average of the first two numbers is 75 and the third number is 135. Find the average of the remaining two numbers?

Kartik can do a piece of work in 4 hours. Ishan can do it in 20 hours. With the assistance of Krish, they completed the work in 2 hours. In how many hours can Krish alone do it?

A person can complete a journey in 9 hours. He covers the first one-third part of the journey at the rate of 10 km/h and the remaining distance at the rate of 20 km/h. What is the total distance of his journey (in km)?

What is the smallest 5-digit number exactly divisible by 999?

Evaluate: 41 - [21 - {11 - (15 - 6 ÷ 3 × 3)}]

Find the surface area of a sphere whose diameter is equal to 84 cm

A sum, when invested at 10% simple interest per annum, amounts to ₹3840 after 2 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 2 years?

2% of 14% of a number is what percentage of that number?

After 62 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?

Evaluate: 2 × {17 - 2 × (10 -4)}

Find the value of 4.05 − 1.25 − 3.68 + 8.76 + 0.5 − 4.26.

Which of the following numbers nearest to 90561 is divisible by 9?

The average of first 119 odd natural numbers, is:

The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 104. Find the average of the remaining two numbers?

The sum of 8 numbers is 936. Find their average.

Find the surface area of a sphere whose diameter is equal to 28 cm

Evaluate: 2 × {17 - 2 × (10 -5)}

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

The two numbers whose mean proportional is 14 and third proportional is 4802 are:

Find 2 numbers such that their mean proportional is 25 and their third proportional is 25.

Find the fourth proportion of the numbers $\frac{1}{3}rd of 15,\frac{4}{5}th of 25,\frac{3}{7}th of 35$

The fourth proportion of $\frac{1}{2},\frac{1}{3},and \frac{1}{4}$ is

The third proportional of a and $\frac{b^4}{4a}$ is

Find X, $\frac{1}{5}:\frac{3}{4}:\frac{2}{7}:X?$

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.

adj(A') =

ക്രമം 3 ആയ സിംഗുലാർ അല്ലാത്ത മാട്രിക്സ് ആണ് A എങ്കിൽ |adjA|=

If the radius of a cylinder is doubled and the height is halved, then the volume change will be

Evaluate: 2 × {17 - 2 × (10 -6)}

The average of first 120 odd natural numbers, is:

Evaluate: 2 × {17 - 2 × (9 -6)}

Safia calculated his loss percent as

14\frac27

% on cost price. The ratio of selling price to cost price will be:

Find the compound interest on ₹20,000 at 20% p.a for $1\frac12$ years compounded half-yearly.

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?

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