Question
Four number-pairs are given, out of which three are
alike in a certain manner and one is different. Choose the different number - pair:Solution
The pattern followed in this series is: the second number is obtained by squaring the first number and then subtracting 4. A) 12 : 140 → 12² - 4 = 144 - 4 = 140 B) 15 : 221 → 15² - 4 = 225 - 4 = 221 C) 8 : 60 → 8² - 4 = 64 - 4 = 60 D) 11 : 117 → 11² - 4 = 121 - 4 = 117
- Find the HCF of 84 and 630.
Find the difference between sum of digits of LCM and HCF of 18, 24 and 60.
What is the fourth proportional to 4, 5, 16?
If 16 times a number is subtracted from the square of the number and then 64 is added to the result, then the result is zero. Find the L.C.M of the num...
The LCM of two natural numbers is 15 times their HCF. If the product of given two numbers is 13,500, then find the LCM of the numbers.
LCM of two prime numbers 'p' and 'q' is 323 where p < q. Find the value of 'q'.
HCF of two numbers 70 and 140 can be expressed in the form of (20m – 110) whereas LCM of these two numbers can be expressed in the form of (40n – 20...
The sum of two numbers is 444 and their HCF is 37. Find all the possible pairs of such numbers?
Find the HCF of 240, 280 and 560.
- Find the least common multiple of (25/35), (10/14), and (30/42).
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