The following numbers form a series. Find the odd one out.

72, 37, 39, 81, 336, 2704

Find the ratio in which mixture ‘A’ containing 180 ml of milk and 140 ml of water should be mixed with another mixture ‘B’ containing water and milk in the ratio of 5:7 so that ratio of milk to water in the resultant mixture becomes 4:3, respectively.

The cost price of an article is Rs. 12,000. It is marked 50% above its cost price and sold for Rs. 12,087 after giving two successive discounts of x% and (x + 6)%, respectively. Find the value of ‘x’.

A train can cross a pole in 12 seconds while it can cross 324 metres long platform in 33.6 seconds. Find the time (in hours) taken by the train to cover a distance of 648 km if the train increased its speed by 60%.

The cost price of an article is Rs. 12,000. It is marked 50% above its cost price and sold for Rs. 12,087 after giving two successive discounts of x% and (x + 6)%, respectively. Find the value of ‘x’.

The curved surface area of a right circular cone is 550 cm2. If the radius of the cone is 7 cm, then find the height of the given cone. (Take π = 22/7)

In a car, 3 girls and 2 boys can be accommodated. In how many ways the selection can be made out of 5 boys and 5 girls?

‘A’, ‘B’ and ‘C’ have same sums with them. They invested their sum at 10% p.a., 15% p.a. and 20% p.a. simple interest respectively. If the sum of the interest received by them after 2 years is Rs. 6300, then find the sum each of them had with them.

Speed of a boat in downstream is 8 km/h more than speed of boat in upstream. If the boat can travel 120 km in upstream and 140 km in downstream in 11 hours, then find the time taken by boat to cover 186 km in still water.

A bag contains 3 red balls, 5 pink balls and certain white balls. Two balls are drawn at random. If the probability of drawing a red ball and a pink ball is 5/22, then find the number of white balls in the bag.

Statements: P > Z, N < T, M > N, Z > M Conclusions: I. P < T II. N < Z (RRB NTPC 2022 PYP)

Rubi and Juhi are sisters. Krishna is Johi's father's father. Reshms in the mother of Arvind. Arvind is the father of Rohit, who is the only brother of Rubi. How is Krishna related to Rohit? (RRB NTPC 2022 PYP)

Six people A, B, C, D, E and F are sitting around a circular table facing the centre. C sits second to the left of B. E is an immediate neighbour of B. F sits third to the left of E. D sits second to the left of A, who sits to the immediate right of A? (

In a certain code language, 'cip civ cin' is written as 'life is good', 'cip cin er' is written as 'love is life'. How will 'love' written as in that language? (RRB NTPC 2022 PYP)

In the data set given below, what is the difference between the Median and the Mode? {2.1, 5, 6, 7, 8, 9.3,11,15, 17, 19.21, 27, 31, 31, 33, 16.5, 14, 10}

Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series. A_ _BD_CEB_ _ CEB_

Statements: All men are robots All robots are machines. Conclusions: I. All machines are men. II. Some robots are men

Select the number from among the given options that can replace the question mark (?) in the following series. 3, 4, 7, 12, 19, 28, ? (RRB NTPC 2021 PYP)

The simple interest on an investment of Rs. ‘x’ for 4 years is Rs. 960. If the compound interest on the same investment at the same rate for 2 years is Rs. 504, then find the value of ‘x’.