Shyam Saraf and Abhilasha Swarup Solutions for Exercise 4: EXERCISE

In the following series, how many such odd numbers are there which are divisible by $3$ or $5$, then followed by odd numbers, and then also followed by even numbers?

$12, 19, 21, 3, 25, 18, 35, 20, 22, 21, 45, 46, 47, 48, 9, 50, 52, 54, 55, 56$

If $3$is added to the middle digit of the following numbers and then the position of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order?

$547,305,564,249,931,164,161$

Given here are six numbers written in the form of numerals and letters. The letter indicates its position in the English alphabet. What will be the middle digit of the fourth number when the numbers are arranged in descending order after interchanging numerals in each number without altering the digit, which is represented by a letter?

$7$E$2$,E$25$,$13$F,$8$D$3$,$64$B,$7$F$8$

If the given numbers are arranged in descending order based on the sum of the digits of each number, which one will be in the middle?

$853, 395, 486, 249, 497, 766, 914$

If the order of the digits in each of the following numbers is reversed and the newly formed numbers are arranged in ascending order, what will be the middle digit of the fourth number from the left?

$845,632,489,398,817,546,279,638$

The following numbers are rewritten by interchanging the digits in the tens place and hundreds place and then they are arranged in descending order. What will be the second digit of the newly formed fourth number from the left?

$479,736,895,978,389,675$

If $2$ is subtracted from the middle digit of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 

$489 362 154 271 542$

Given here are six three-digit numbers. One of the digits of each number is represented by a letter. The letter indicates its position in the English alphabet. What will be the middle digit of the fourth number when the numbers are arranged in the descending order after interchanging numerals in each number without altering the place of the letter in the number?

$19$F,$2$H$9$,$98$B,D$76$,$7$A$6$,$61$E