RRB NTPC- Practice Set-8

A can-do a piece of work in the same time in which B and C together can do it. if A and B together could do it in 20 days and c alone in 100 days, in what time could B alone do it?

In a fruit shop, the cot price of 25 mangoes is equal to the selling price of 20 mangoes. The percentage of profit earned by the shopkeeper is--

The difference between the compound interest and simple interest on a certain sum of money at 5% rate of interestper annum for 2 years is Rs-30, then the sum is

Heat received by the Earth from the sun is known as:

Hydrogen peroxide is used as a preservative in

The length of common chord of two circles of radii 30 cm and 40 cm whose centres are 50 cm apart.

If a train, 75m long, takes 20 seconds to cross a tree by the railway line, what is the speed of the train in km/hr unit?

In a triangle, ABC, AB = AC, angle A = 90°, AD is a median. Then the value of angle BAD is-

If 7Cosθ + 24sinθ = 25, then the value of tanθ is-

Blood does not clot while flowing in the blood vessel because of the presence of

Which number is wrong in the given series?

5,11,23,47,96

Which state becomes the top in the Anaemia Mukt Bharat index among all states and UT of India.

Rajiv is the brother of Arun. Sonia is the sister of Sunil. Arun is the son of Sonia. How is Rajiv related to Sunil

Who was the pioneer among the social reformers?

Ajanta and Ellora caves are situated near

Indicating a man in the photograph A women said " He is the son of the only daughter of my mother", then how is man's wife related to woman's husband?

If black is called White, White is called Yellow, Yellow is called Blue, Blue is called Pink and Pink is called Green, then what will be the colour of milk?

Which country is to send the world's first mining robot named  "Asteroid Mining robot" into space?

A batsman in his 12th innings makes a score of 63 runs and thereby increasing his average scores by 2. What is his average after the 12th innings?

Y is the east of X which is in the North of Z. If P is in the South of Z, then in which direction of Y is P?

Which country is the largest producer of Wool?

Indian Space Research Organisation (ISRO) is set to launch a venus mission by which year?

Which of the following associated with Panchayati Raj?

Which is the largest Cell in human body?

The area of the triangle formed by the straight line 4x + 3y = 12 and the coordinate axes x and y is-

Chiroperophily means:

Find the length of the radius of the circumcircle of a triangle having sides 3cm, 4cm and 5 cm.

Fill in the blanks

2,5,12,27,58,121,___

A chocolate drink is 10% pure chocolate by volume. If 5 litres of  pure milk is added to 28 litres of this drink, the percentage of chocolate in the new drink is-

When water is heated from 0ºc to 10°c, the volume of water-

Which country's cabinet has approved the law to include the Death penalty as the highest punishment for rape culprits?

The highest biodiversity is found in which climate?

24 : 60 : : 210 : ?

The greatest value of 3sin²θ + 7cos²θ is-

If + means ÷, ÷ means -, - means ×, and × means + then

8+2÷3-4×6 = ?

If 29th February 1986 falls on Sunday, then which day falls on 28th February 1904?

A mixture contains milk and water in the ratio 5:3. On adding 12 litres of water, the ratio of milk to water becomes 7:5. Find the total quantity of the original mixture.

what satyagraha was held at Nagpur in 1923?

AB and CD are two chords of a circle, intersect at a point P. If angle APC = 80° and angle ADP = 30°, then find the value of angle BCD.

Which amendment of the constitution deals with political defection?

Which decade is named as the " Decade of Healthy Ageing" as per the World Health Organisation(WHO)?

What is the angle that is formed between the two hands of a clock at 3.45?

The mansabdari system was introduced by

Who was the founder of Slave dynasty?

Two circular cylinders of equal volumes have their heights in the ratio 3:2. The ratio of their radii is-

The Great Barrier Reef is located in-

Find the value of  (1+cotθ-cosecθ)(1+tanθ+secθ) is equal to

pH value of blood is

If x²-y² = 80 and x-y =8, then the average of x and y is

The acid rain destroy the vegetation because it contains: