LCM & HCF-9

The maximum number of students among whom 1001 pens and 910 pencils can be distributed in such a way that each student gets same number of pens and same number of pencils, is :

• 91

• 910

• 1001

• 1911

Let x be the smallest number, which when added to 2000 makes the resulting number divisible by 12, 16, 18 and 21. The sum of the digits of x is

• 7

• 5

• 6

• 4

What is the greatest number that  will divide 307 and 330 leaving remainders 3 and 7 respectively ?

• 19

• 16

• 17

• 323

Three tankers contain 403 litres, 434 litres, 465 litres of diesel respectively. Then the maximum capacity of a container that can measure the diesel of the three containers exact number of times is

• 31

• 62

• 41

• 84

84 Maths books, 90 Physics books and 120 Chemistry books have to be stacked topicwise. How many books will be there in each stack so that each stack will have the same height too ?

• 12

• 18

• 6

• 21

Two pipes of length 1.5 m and 1.2 m are to be cut into equal pieces without leaving any extra length of pipes. The greatest length of the pipe pieces of same size which can be cut from these two lengths will be

• 0.13

• 0.4

• 0.3

• 0.41

The LCM of two multiples of 12 is 1056. If one of the number is 132, the other number is

• 12

• 72

• 96

• 132

If the product of three consecutive numbers is 210 then sum of the smaller number is :

• 3

• 4

• 5

• 11

The greatest number, that divides 122 and 243 leaving respectively 2 and 3 as remainders, is

• 12

• 24

• 30

• 120

The number of pair of positive integers whose sum is 99 and HCF is 9 is

• 2

• 3

• 4

• 5