Question
15, 27, 51, 99, 193,
387 Find the wrong number in the given number series.Solution
ATQ, 15 × 2 – 3 = 27 27 × 2 – 3 = 51 51 × 2 – 3 = 99 99 × 2 – 3 = 195 195 × 2 – 3 = 387 195 should come in place of 193
Find the difference between sum of digits of LCM and HCF of 32, 48 and 80.
The HCF of 2165 and 7409 is 239, their LCM is:
The HCF of two numbers is 33 and their sum is 594. Find the total number of such possible pairs of numbers.
The HCF and LCM of 2 numbers are 2 and 60 respectively. If one of the numbers is 14 more than the other, find the smaller number.
 Find the HCF of 756, 1134 and 1386.
If Ashish has 3 types of pens in a ratio 4 : 6 : 5 such that their LCM is 360, then find the sum of the highest and lowest number of pens that he has?
If two numbers have a product of 350 and their HCF is 7, find the LCM of these numbers.
The LCM and the HCF of the numbers 27 and 81 are in the ratio:
Find the HCF of two numbers if LCM and product of those two numbers are 34 and 680 respectively.
If the highest common factor of two numbers is 25, then which of the following may be the least common multiple of the numbers?
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