Question
The second number in the given number pairs is obtained
by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs except one. Find that odd number-pair.Solution
The logic followed here is: First number = 2 X Second number - 3 32 : 16 → 2 X 16 - 3 = 32 – 3 = 29. 55 : 29 → 2 X 29 - 3 = 58 – 3 = 55. 39 : 21 → 2 X 21 - 3 = 42 – 3 = 39. 73 : 38 → 2 X 38 - 3 = 76 – 3 = 73.
When a number is increased by 20% then the number obtained is 72 less than thrice the original number. Find the original number.
If the numerator of a fraction is increased by 60% and the denominator is decreased by 20%, then the value of the fraction becomes 21/16. Then tell the ...
- The number of marbles with Amit and Rahul is 14 more than with Kabir. Rahul and Kabir together have 4 more marbles than Amit. If Amit and Kabir together ha...
Three natural numbers are such that one-third of the first number is equal to two-fifths of the second, and two-thirds of the second number is equal to ...
- When a number is divided by 23, the remainder obtained is 17. What will be the remainder when three times the same number is divided by 23?
How many integers are there between 50 and 600 that are divisible by both 15 and 25?
- Find the sum of all two-digit numbers that are exactly divisible by 7.
How many digits are required to write first 500 natural numbers?
What is the largest three-digit number that leaves a remainder of 5 when divided by both 11 and 13? Call this number a. Additiona...
If the sum of two numbers is 33 and their difference is 15, the smaller number is
Relevant for Exams:
