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Number System || 23.09.2022

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Question 1

What will be the remainder when 141×142×143 is divided by 6?

Question 2

The L.C.M. of two numbers is 48. The numbers are in the ratio 2:3. The sum of the numbers is:

Question 3

Product of three consecutive odd numbers is 1287. What is the largest of the three numbers?

Question 4

The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?

Question 5

Find the total no. of digits required to write the counting from 1 to 867.

Question 6

47 is added to the product of 71 and an unknown number. The new number is divisible by 7 giving the quotient 98 with no remainder. The unknown number is a multiple of:

Question 7

Which of the following digit can't be the unit's digit of a perfect square?

Question 8

How many numbers exist between 100 and 1000 which are divisible by 7?

Question 9

A number x is divisible by 7. When this number is divided by 8, 12 and 16, it leaves a remainder 3 in each case. The least value of x is :

Question 10

Find the unit digit of: 17357 × 201501 × 6814 + 3657 + 6818
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Sep 23SSC & Railway