If a + b + c = 1904, a ∶ (b + c) = 3 ∶ 13 and b ∶ (a + c) = 5 ∶ 9, then what will be the value of c?

If P ∶ Q = 9 ∶ 1, Q ∶ R = 1 ∶ 8 and R ∶ S = 1 ∶ 10, then what is the value of P ∶ R ∶ S respectively?

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

In covering a distance of 90 km, Anirudh takes 8 hours more than Burhan. If Anirudh doubles his speed, then he would take 7 hour less than Burhan. Anirudh's speed is:

If an electricity bill is paid before the due date, one gets a reduction of 5% on the amount of the bill. By paying the bill before the due date, a person got a reduction of ₹14. The amount of his electricity bill was:

The sum of five numbers is 655. The average of the first two numbers is 77 and the third number is 128. Find the average of the remaining two numbers?

Pipes A and B can empty a full tank in 5 hours and 12 hours respectively. Pipe C can fill the same empty tank in 2 hours. If all the three pipes are opened together, then the tank will be filled in:

The sum of 8 numbers is 900. Find their average.

If 3 , 60 , 62 , and y are in proportion, then the value of y is:

An amount of ₹840 is divided among three persons in the ratio of 16 : 6 : 18. The difference between the largest and the smallest shares (in ₹) in the distribution is:

The sum of the length, width and depth of a cuboid is 8 cm and its diagonal is 5 cm. What is its surface area?

Evaluate: 2 × {17 - 2 × (9 -4)}

The average of first 122 odd natural numbers, is:

A person can complete a journey in 22 hours. He covers the first one-third part of the journey at the rate of 15 km/h and the remaining distance at the rate of 45 km/h. What is the total distance of his journey (in km)?

Swara deposited ₹75,000 with a finance company for 3 years at an interest of 12% per annum, compounded annually. What is the compound interest that Swara gets after 3 years?

Evaluate: 2 × {17 - 2 × (11 -5)}

A man riding on a bicycle at a speed of 95 km/h crosses a bridge in 6 minutes. Find the length of the bridge?

When the price of a portable hard disk is reduced by 24%, its sale increases by 35%. What is the net percentage change in the total revenue?

A solid metallic hemisphere of radius 5.4 cm is melted and recast into a right circular cylinder of radius 12 cm. What is the height (in cm) of the cylinder?

If 25% of a number is added to 60, then the result is the same number. 80% of the same number is:

Ajay received ₹41,160 for lending ₹z for 3 years at the rate of 40% per annum compound interest. What is the value of z (in ₹)?

Two numbers X and Y are in ratio as 8 : 13. The LCM of these two numbers is 832. How much the value of Y is more than X?

A vendor has 120 kg rice of one kind, 160 kg of another kind and 210 kg of a third kind. He wants to sell the rice by filling the three kinds of rice in bags of equal capacity. What should be the greatest capacity of such a bag?

PQRS is a parallelogram, PX ⊥ SR and RY ⊥ PS. If PQ = 21 cm, PX = 8 cm and RY = 12 cm, find PS.

A number when increased by 40 %', gives 3710. The number is:

A sum, when invested at 10% simple interest per annum, amounts to ₹2640 after 2 years. What is the simple interest (in ₹) on the same sum at the same rate of interest in 1 year?

A real estate agent sells two sites for ₹48,000 each. On one he gains 35% and on the other he loses 35%. What is his loss or gain percentage?

How many two-digit numbers are divisible by 5?

The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 105. Find the average of the remaining two numbers?

What is the average speed of a car which covers half the distance with a speed of 28 km/h and the other half with a speed of 84 km/h?

Jitesh and Kamal can complete a certain piece of work in 7 and 16 days, respectively, They started to work together, and after 2 days, Kamal left. In how many days will Jitesh complete the remaining work?

Suji marked a dress 50% above the cost price. If she offers a discount of 30% on the marked price and the customer pays ₹5,250, the cost price is:

The average of 12 numbers is 39. If the number 52 is also included, then what will be the average of these 13 numbers?

A shopkeeper bought an item for ₹400. He sold it at a profit of 25%. Then, the buyer sold it to another person at a loss of 10%. What is the final selling price?

If 19 , 57 , 81 , and y are in proportion, then the value of y is:

Evaluate: 41 - [21 - {11 - (15 - 9 ÷ 3 × 2)}]

Find the perimeter of an equilateral triangle with a side length of 6 cm.

The sum of five numbers is 655. The average of the first two numbers is 77 and the third number is 123. Find the average of the remaining two numbers?

The average of first 126 odd natural numbers, is:

A pencil sharpened at both edges is the combination of _________ and __________.

Which of the following numbers is divisible by both 4 and 9?

The monthly incomes of two friends Chetan and Vipul, are in the ratio 5 : 7 respectively and each of them saves ₹96000 every month. If the ratio of their monthly expenditure is 1 : 3, find the monthly income of Chetan(in ₹).

What is the greatest number that will divide 446 and 487, leaving remainders 9 and 12, respectively?

Evaluate: 41 - [36 - {48 ÷ 3 - (4 - 8 ÷ 2) ÷ 2}]

What is the simplest fractional form of 0.625?