📘 Comparisons and Special Cases📚 SI vs CI Direct Comparison

Q1

A moneylender borrows money at 4% per annum and pays the interest at the end of the year. He lends it at 8% per annum compound interest, compounded half-yearly, and receives the interest at the end of the year. In this way, he gains ₹166.4 a year. Find the amount of money he borrows.

🎯 SSC Delhi Police Constable 28/11/2023 (Shift-01)

📘 Half-Yearly Compounding📚 Find Rate Given Amount and Time

Q2

The compound interest on a sum of ₹8,000 becomes ₹9,261 in 18 months. Find the rate of interest if interest is compounded half-yearly.

🎯 SSC Delhi Police Constable 14/11/2023 (Shift-03)

📘 Prime Numbers Twin Primes and Perfect Numbers📚 Properties and Identities of Prime Numbers

Q3

If a, b, c, d and e are distinct prime numbers and the sum of these five numbers is odd, then a + b + c + d is:

🎯 SSC Delhi Police CONSTABLE 23/11/2023 (Shift-01)

📘 Co-prime Numbers📚 Properties of Co-prime Numbers

Q4

Let a and b be two numbers such that a and (b - a) are co-primes and b and (b + a) are co-primes, respectively. Which of the followings is true?

🎯 SSC Delhi Police CONSTABLE 16/11/2023 (Shift-03)

📘 Co-prime Numbers📚 Identifying Co-prime Numbers

Q5

Which of the following is a pair of co-primes?

🎯 SSC Delhi Police CONSTABLE 14/11/2023 (Shift-01)

📘 Prime Numbers Twin Primes and Perfect Numbers📚 Special Prime Related Problems

Q6

If (k^2 + 3) and (k^2 + 5) are prime numbers then what will be the value of k?

🎯 SSC Delhi Police CONSTABLE 14/11/2023 (Shift-02)

📘 Classification and Identification of Numbers📚 Smallest and Largest of Number Types

Q7

What is the smallest prime number of 5 digits?

🎯 SSC Delhi Police CONSTABLE 02/12/2023 (Shift-01)

📘 Co-prime Numbers📚 Applications in Factors and Remainders

Q8

Three numbers which are co-prime to each other are such that the product of the first two is 391 and that of the last two is 943. Find the middle number.

🎯 SSC Delhi Police CONSTABLE 16/11/2023 (Shift-01)

📘 Prime Numbers Twin Primes and Perfect Numbers📚 Special Prime Related Problems

Q9

The sum of three primes is 72. If one of the numbers is 24 more than the other number, then which one is the number?

🎯 SSC Delhi Police CONSTABLE 17/11/2023 (Shift-01)

📘 Prime Numbers Twin Primes and Perfect Numbers📚 Special Prime Related Problems

Q10

Let, N be a four-digit positive integer such that the unit digit of N is prime and the product of all the digits of N is also prime. The number of possible values of N is:

🎯 SSC Delhi Police CONSTABLE 25/11/2023 (Shift-01)

📘 Factors Count Type and Properties📚 Sum of Prime Factors Distinct and With Repetition

Q11

Which of the following numbers is greater than the sum of all the prime factors of 1560?

🎯 SSC Delhi Police CONSTABLE 29/11/2023 (Shift-03)

📘 Classification and Identification of Numbers📚 Prime and Composite Numbers Identification

Q12

Which of the following is a prime number?

🎯 SSC Delhi Police Head CONSTABLE 13/10/2022 (Shift-01)

📘 Prime Numbers Twin Primes and Perfect Numbers📚 Properties and Identities of Prime Numbers

Q13

Each prime number has factor/factors.

🎯 SSC Delhi Police Head CONSTABLE 20/10/2022 (Shift - 01)

Mathematics - MOST IMPORTANT Delhi Police Previous Year Questions