Challenger App

No.1 PSC Learning App

1M+ Downloads

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

11 - 12 - 23

4 - 45 - 49

In a certain code language, ‘CORE’ is coded as ‘6732’ and ‘ROCK’ is coded as ‘7625’. What is the code for ‘K’ in the given code language?
Seven people, A, B, C, D, E, F and G are sitting in a row, facing north. No one sits to the right of B. Only three people sit between B and G. Only two people sit between G and D. E sits third to the left of F. C sits to the immediate right of F. How many people sit to the left of G?
What will come in the place of the question mark (?) in the following equation if ‘9’ and ‘3’ are interchanged? 2 – 3 ÷ 9 × 6 + 5 =?
In the year Vikram 1631 (1575 CE), Goswami Tulsidas started composing the Ramcharitmanas at which place on Ram Navami?

Refer to the following series and answer the question (all numbers are single digit numbers only).

(Left) 6 2 1 3 7 6 9 7 4 3 5 2 3 4 3 4 2 3 1 5 7 9 5 8 5 7 5 (Right)

How many such even digits are there each of which is immediately preceded by an even digit and also immediately followed by an odd digit?

D, E, F, P, Q, and R are sitting in a row facing north. Only R sits to the right of P. Only one person sits between P and Q. Only one person sits to the left of F. E is not an immediate neighbour of Q. How many people sit between E and D?
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: Some pears are candles. All drillers are candles. Conclusions: (I): Some pears are drillers. (II): All candles are drillers

The HDI is a summary composite measure of a country's average achievements in basic aspects of human development, which are ______?

  1. 1. Health
  2. 2. Knowledge
  3. 3. Daily Income
    What is the main aspect of Gandhiji's ideology?
    In which of the following states did Prime Minister Narendra Modi launched the Dharti Aaba Janjatiya Gram Utkarsh Abhiyan (DAJGUA) on 2 October 2024?
    The 19th Century Hindu saint of India, Ramakrishna Paramahamsa, who was renowned for simplifying complex spiritual teachings, was born in which district of West Bengal?
    Which type of seeds became popular during the Green Revolution in India?
    Where was the September 2024 conference for Directors on the Boards of Small Finance Banks (SFBs) organised by the Reserve Bank of India held?
    Which fundamental right has provided Prevention against Arbitrary Arrest and Detention to Indian citizens?
    The Chicken's Neck Corridor, often seen in the news, is strategically important for India and also known as ______?
    Who was the leader of Rewari during the Revolt of 1857?
    What was the significant event that took place during the seventy-ninth session of the UN General Assembly in 2024?
    Where was India's first demonstration facility for biopolymers inaugurated on 13 October 2024?
    Who among the following is considered the head of the Union Cabinet?
    In which of the following countries did the third edition of the INDUS-X Summit conclude in September 2024?
    According to the 2023/24 Human Development Report (HDR), India ranked at _______ out of 193 countries and territories on the Human Development Index (HDI)?
    As of October 2024, what is India's renewable energy capacity?
    A cistern can be filled by a tap in 6 hours and emptied by an outlet pipe in 7.5 hours. How long will it take to fill the cistern if both the tap and the pipe are opened together?
    Evaluate: 2 × {17 - 2 × (10 -5)}
    The difference between the compound interest, compounded annually, and the simple interest earned on a certain sum of money in two years at 10% interest per annum, is ₹197.2. Find the sum invested.
    Find the surface area of a sphere whose diameter is equal to 28 cm
    The sum of 8 numbers is 936. Find their average.
    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 average of first 119 odd natural numbers, is:
    The population of a city increases 11% annually. Find the net percentage increase in two years.
    image.png
    A merchant buys a watch for ₹1,500 and sells it at a 10% loss. He then buys the same model for ₹1,600 and sells it at a 20% profit. Find the overall profit or loss percentage (rounded off to 2 decimal places).
    Which of the following numbers nearest to 90561 is divisible by 9?
    A person can complete a journey in 6 hours. He covers the first one-third part of the journey at the rate of 23 km/h and the remaining distance at the rate of 46 km/h. What is the total distance (in km) of his journey?
    Find the least number which should be added to 2395 so that the sum is exactly divisible by 3, 4, 5 and 6.
    image.png
    A man riding on a bicycle at a speed of 66 km/h crosses a bridge in 18 minutes. Find the length of the bridge?
    Find the value of 4.05 − 1.25 − 3.68 + 8.76 + 0.5 − 4.26.
    The least common multiple of two numbers is 364 and their greatest common factor is 26. If one of the numbers is 26, then find the other number.
    The areas of a rectangular garden and a square garden are equal. If the length and the breadth of the first garden are 32 m and 8 m, then find the perimeter of the square garden
    The shares of P, R and S in a business are in the ratio 2 : 3 : 4. If the total profit is ₹18,000, then S gets how much more (in ₹) than P?
    In what ratio should sugar costing ₹74 per kg be mixed with sugar costing ₹41 per kg so that by selling the mixture at ₹85.8 per kg, there is a profit of 30%?
    Evaluate: 2 × {17 - 2 × (10 -4)}
    A shopkeeper allows his customers 10% off on the marked price of goods and still gets a profit of 12.5%. What is the actual cost of an article marked ₹2,750?
    A train overtakes two persons walking along a railway track. The first one walks at 5.4 km/h. The other one walks at 10.8 km/h. The train needs 5.1 and 6.8 seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train?
    A birthday cap is in the form of a right circular cone of base radius 6 cm and height 8 cm. Find the area of the paper sheet required to make 15 such caps. (π =3.14)
    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?
    There are 7314 students in a school and the ratio of boys to girls in the school is 27 : 26, then find the number of boys in school.
    An item with cost price of ₹120 is sold by P to R at a 12% profit. R earns a profit of ₹45.6 on the item and sells it to Q. The profit of P would have been ____% if the item is sold by P to Q directly at the same selling price.