The reciproal of 1/2 is

Water level in a well was 20m below ground level. During rainy season, rain water collected in different water tanks was drained into the well and the water level rises 5 m above the previous level. The wall of the well is 1m 20 cm high and a pulley is fixed at a height of 80 cm. Raghu wants to draw water from the well. The minimum length of the rope that he can use is

If a and b are positive integers, then the solution of the equation ax = b will always be a

When a number is multiplied by 5 is increased by 80, what is the number?

A cake is made-up of 100g sugar, 400g eggs, 300g cream and 200g dry fruits. What percent of sugar is present in the cake?

(– 25) × [6 + 4] is not same as

After increasing the rate of book by 20% , It becomes ₹120. What is the original price of the book?

Increase Rs 512 by 6%

If the sides of a parallelogram are increased to twice its original lengths, how much will the perimeter of the new parallelogram increase?

Find the value of 625 × (–35) + (– 625) × 65

|p - q| = |p| - |q|, where p and q are natural numbers and p < q.

Find a rational number exactly halfway between -2/5 and 2/5

The height of an equilateral triangle is √6cm, Its area is :

225% is equal to

A girl has read 240 books out of a total of 300 on her bookshelf. What is the percentage of books that he has not yet read?

If the sum of two consecutive numbers is -27, find the numbers?

In a class of 45 pupils 18 wear glasses. What is this a percentage of the pupils that wear glasses in the class?

Ratio of area of ∆MNO to the area of parallelogram MNOP in the same figure is

A rational number is defined as a number that can be expressed in the form p/q , where p and q are integers and

The perimeter of a floor of a room is 18 m .What is the area of four walls of the room if its height is 4 m?