Challenger App

No.1 PSC Learning App

1M+ Downloads
Which of the following is NOT a part of the Panchayati Raj system in India as per the Constitution?
Which of the following languages is NOT a classical language in India as on June 2022?
Given below are some conclusions of Mendel's work on pea plants. All of them are correct except one. Select the INCORRECT conclusion?

Consider the below statements and identify the correct answer.

  1. Statement-I: Most carbon compounds are poor conductors of electricity.
  2. Statement-II: Carbon compounds have low melting and boiling points.
    From which state of India did ISRO successfully test fire the Vikas engine, that would power India's first human-carrying rocket Gaganyaan?
    Which of the following is NOT a result of the ozone layer depletion?
    At which position on principal axis does a concave mirror forms a highly diminished, real and inverted image of an object?

    Consider the statements below and identify the correct answer.

    1. Statement-I: Modern periodic table has 18 vertical columns known as groups.
    2. Statement-II: Modern periodic table has 7 horizontal rows known as periods.
      An object placed 30 cm from a concave lens forms a virtual erect image at a distance of 10 cm from the lens. The magnification produced by the lens is?
      Which of the following is NOT a tributary of the Yamuna river system?
      The Missionaries of Charity is a Catholic religious congregation established in ________ by Mother Teresa?
      Fiscal policy is the policy of?
      In a dynamo, electric current is produced using the principle of?
      image.png
      Some features of transportation in plants are mentioned below. Which option shows the INCORRECT feature?
      Which Article of the Indian Constitution states that The Council of Ministers shall be collectively responsible to the House of the People"?
      Which of the following group of hydrocarbons follows the general formula of CnH2n?
      Which of the following Acts was passed by the British Parliament, defining the powers and responsibilities of the various organs of the East India Compаnу?
      Which of the following home appliances does NOT use an electric motor?
      Selectively permeable membranes are those that allow penetration of ________?
      Find the mode of the data 2, 2, 3, 5, 15, 15, 15, 20, 21, 23, 25, 15, 23, 25.
      P. Q. R. S and T are sitting in a straight row, facing north. Neither Q nor S sit at the exact central position of the row. R is adjacent to S, while P and T are sitting at the extreme ends of the row. Who is sitting at the exact central position of the row?
      Two angles are complementary. The larger angle is 6º less than thrice the measure of the smaller angle. What is the measure of the larger angle?
      If 3x - 2y = 10 and xy = 11, the value of 27x³ - 8y³ is_____
      image.png
      Which of the following numbers will replace the question mark (?) in the given series? 13, 21, 33, 54, 91,?
      image.png
      image.png
      In how many years will a sum of ₹10,000 become ₹13,310 at 10% compound interest per annum, compounded annually?
      image.png
      The area (in square units) of the triangle formed by the vertices (0,2), (2,3) and (3,1) is:
      Vikas took a bus from a bus stop. The bus travelled 50 m towards the west. Then, it took a right turn and travelled 70 m. Then, it took a left turn and travelled 15 m. Then, it took a left turn and travelled 30 m. Then, it took a left turn and travelled 35 m. Then, it took a right turn and travelled 10 m. Finally, it took a left turn and travelled 30 m to reach the school. How far and in which direction is the bus stop from the school? (All turns are 90 degree turns only)
      If 10% of 24% of x is 240, then x = ?
      If sec 44 cosec (3A-50°), where 44 and 34 are acute angles, find the value of A + 75.
      What is the angle traced by the hour hand in 23 minutes?
      G, H, I, J, K and L live on six different floors of the same building. The lowermost floor in the building is numbered 6, the floor above it is numbered 5, and so on till the topmost floor is numbered 1. J lives on an even numbered floor. G and K. each live on an odd numbered floor. I lives on floor number 2. H lives on an odd numbered floor, immediately above L and immediately below I. G does not live on the topmost floor. Who lives on the lowermost floor?
      image.png
      A and B invest ₹42,000 and 56,000 respectively, in a business. At the end of the year they make a profit of 287,220. Find B's share in the profit.
      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 its constituent digits. E.g. 13-Operations on 13 such as adding /deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed) (12, 51, 5) (5, 36, 7)

      Study the given letter series and answer the question that follows.

      KIOXJETRULEBACKJMN

      How many such vowels are there each of which is immediately followed by atleast two consonants appearing together in the above series?

      Find the smallest number by which 6300 must be multiplied to make it a perfect square
      The sum of ages of P and Q is 15 years more than the sum of ages of Q and R. How many years younger is R as compared to P?
      The smallest natural number that must be added to 1212 to make it a perfect square is:
      Which of the following numbers will replace the question mark (?) in the given series? 2, 14, 70, 210,?
      If a + b = 56 and (a - b)² = 496, find the value of product of a and b.
      In February 2022, India became the first country in the world to play _________ one day international cricket matches?
      The Twenty Point Programme (TPP) was launched by the Government of India in ________ ?
      Two resistors of 4Ω each are connected in parallels to a 5 V battery source. The total current in the circuit is?
      What is the main reason for the pollution of River Ganga by coliform bacteria?
      Oral pills used for birth control change the hormonal balance of the body. How do these prevent pregnancy? Select the correct option.