LCM & HCF Test 3

Find the least square number which is divisible by 4, 8, 10 and 12?

L.C.M. of two prime numbers x and y (x > y) is 161. The value of  3y – x is?

Find the H.C.F of 6.2, 4.6, 3.2 and 2.8?

If the HCF of two numbers is 35, their LCM is 2275 and one of the numbers is 65, then find the other number?

 The LCM & HCF of the length & breadth of a rectangle are 110 meter & 40 meter respectively. If the breadth be 2/3 of the length, then find the length?

The greatest number of six digits which on being divided by 6,7,8,9 and 10 leaves 4,5,6,7 and 8 as remainders respectively is?

 The sum of the H.C.F. and L.C.M. of two numbers is 680 and L.C.M. is 84 times the H.C.F. If one of the numbers is 96, then the other number is:-

Bill has to pack some oranges into some boxes. If he pack 3 or 4 or 5 or 6 oranges in a box, he left with one orange in each the cases. However, if he pack 7 orange in a box, he left with none. What is the minimum number of oranges that he has?

The largest four digit number exactly divisible by each of 12, 15, 18 and 27 is:

 A personwants to plant 44 apple trees, 66 banana trees and 110 mango trees in equal rows (in terms of number of trees). Also, he wants to make distinct rows of trees (i.e. only one type of tree in one row). The number of rows (minimum) that are required are: