Challenger App

No.1 PSC Learning App

★
★
★
★
★
1M+ Downloads

In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer.

Conditions:

(i) If the first element is an even number and the last a number, the codes for these two(the first and the last elements) are to be interchanged.

(ii) If the first number is an odd number and the last an even number, the first and last elements are to be retained as it is (i.e first and last elements won't get coded).

Question: 7*%3@6

Number/symbol

4

%

7

3

#

*

9

@

6

Code

X

N

B

J

H

L

Y

F

R

Select the option that represents the letters that, when placed from left to right in the same sequence in the blanks below, will complete the letter series.

B_XT_ _HY_MB_Z _M

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/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 are not allowed.) (80, 16, 20) (144, 36, 24)
Find the roots of the equation 6p2−5p−6=0.6p^2 -5p-6 = 0.

Study the given diagram carefully and answer the following question. The numbers in different sections indicate the number of people who like different flavours of ice cream.

image.png

How many people like Mint but NOT Kesar flavoured ice-cream?

Seven boxes, A, B, C, D, E, F and G, are kept one over the other but not necessarily in the same order. Only two boxes are kept between G and B. B is kept at the bottom. C is kept on one of the positions above D. F is kept immediately above D. A is kept fifth from the bottom. E is kept at the top. How many boxes are kept between D and A?
A group of people contains men, women and children. If 40% of them are men, 35% are women and rest are children, and their average weights are 70 kg, 60 kg and 30 kg, respectively. The average weight of the group is:

Three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

1. All jokers are circuses.

2. All circuses are equestrians.

3. Some jokers are spectacles.

Conclusions:

I. Some equestrians are spectacles.

II. Some circuses are jokers.

Study the given number series and answer the question that follows. 26749365195245942371 How many even numbers are immediately preceded by an odd number and immediately followed by a prime number?

If '+' means '÷', '—' means '×', '×' means '+' and '÷' means '—', what will come in place of the question mark (?) in the following equation?

9 × 8 + 4 – 8 ÷ 5 = ?


Which of the following pairs is NOT coprime?
In a certain code language, 'SIGMA' is written as 'FVTZN' and 'FNYRQ' is written as 'SALED'. How will 'ARJUN' be written in that language?
image.png

A statement is given followed by two assumptions numbered I and II. You have to assume everything in the statement to be true and decide which of the given assumptions is/are implicit in the statement.

Statement:

Due to the failure of the main grid, power supply to many parts of the city was affected.

Assumptions:

I. The main grid is responsible for transmission of power to different parts of the city.

II. Most people have backup power installations at their homes to manage during times when power supply is disrupted.

Find the value of 325 x 5 +31×21-22×(63-52).

Simplify 82×3364×81\frac{8^2 \times 3^3}{\sqrt{64} \times \sqrt{81}}.

The sum of the present ages of a father and his daughter is 80 years. Eight years ago, the father's age was seven times the age of his daughter. Eight years from now, what will be the daughter's age?

Based on the given statement, four conclusions are drawn. Find out which conclusion is true based on the statement.

Statement: Y < O ≤ G ≤ K = U > L > P

Options:

  • O = P

  • G = Y

  • K > P

  • Y > L

The HCF of 108 and 144 is_________
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 64:81:: 121: 144 :: 169:?
The parallel sides of a trapezium and its height are in an arithmetic progression with a common difference of 4. If the height is the highest term and the area of the trapezium is 160 sq. units, find the ratio of length of greatest parallel side to that of the smallest parallel side.
This question is based on the following 3-digit numbers. 543 769 552 342 245 (Example-697-First digit = 6, second digit = 9 and third digit = 7) If in each of the numbers, 1 is added to the first digit of every number, in how many numbers will the first digit be exactly divisible by the third digit of the same number?
A sum, when invested at 12.5% simple interest per annum, amounts to 8,250 after 2 years. What is the simple interest?
What is the nature of the roots of the quadratic equation x2−5x+7=0x^2 - 5x + 7 = 0 ?
The difference between the selling price on a discount of 32% and two successive discounts of 20% each on a certain bill is 25. Find the actual amount of the bill.
Find the number of sides in a regular polygon if its each interior angle is 160°.
Raju and Raman can complete a piece of work in 12 days and 16 days, respectively. If they work on alternate days, starting with Raju, in how many days will the work be completed?

If '+' means '—', '—' means '÷', '÷' means '×' and '×' means '+', what will come in place of the question mark (?) in the following equation?

18 - 3 × 14 ÷ 2 + 12 = ?

The sum of two numbers is 32 and one of them exceeds the other by 18. Find the greater number.
Which of the following numbers will replace the question mark (?) in the given series? 17, 30, 44, 59, 75,?
Which of the following number will replace the question mark (?) and complete the given number series? 4, 5, 12, 39, 160,?
image.png

Which tissue in the coconut husk makes it hard and stiff?
The Indian Constitution includes borrowed features from how many countries?
The Easter basket is related to which of the following religions?
Which of the following reactants will come in place of A and give a neutralisation reaction? Ca(OH)2+A→ CaCl₂ + H₂O
Which of following is NOT a part of the Dravidian language family's four largest languages?
_________are used to make bidis?
The normal systolic and diastolic pressure in humans is _________ respectively?

Which of the following statements is/are true for a current carrying straight conductor?

  1. i) The magnetic field lines are concentric circles with conductor at the centre.
  2. (ii) The strength of the magnetic field increases as we move away from the conductor.
  3. (iii) The direction of magnetic field can be determined using right hand thumb rule.
    In December 2021, who launched India's Semiconductor Mission, which aims to manufacture a vibrant semiconductor and display ecosystem to enable India's emergence as a global hub for electronics manufacturing and design?
    Which of the following is an example of a virus?
    Bhupesh suffered crop failure for few years. When he got the pH of the soil examined, it was about 11.6. Which of the following compounds can he use to treat the soil of his agricultural field?
    In February 2022, who was appointed as Chairman of the Insolvency and Bankruptcy Board of India?
    Three bulbs A, B and C rated 40 W, 60 W and 100 W, respectively, are connected in parallel to a voltage source of 220 V. The bulb that glows with maximum brightness is?
    In February 2022, Patanjali launched a co-branded contactless credit card with which bank?
    The splitting up of white light into seven components as it enters a glass prism is called?
    Who bagged the women's singles title at Syed Modi International Badminton Tournament, 2022?
    How many physical regions are there in India?
    In October 2021, which portal was been launched by the Ministry of Social Justice and Empowerment to provide a platform for senior citizens in India seeking employment opportunities?