Aptitude · all questions

Problems On H.C.F And L.C.M
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

187

Questions

7/10

Page

Pick an option on a question to see the right answer and solution.

Q121

HCF of

\frac{2}{3}, \frac{4}{5}

and

\frac{6}{7}

is = ?

Select an option to see the answer and solution.

Q122

The sum of two numbers is 45. Their difference is

\frac{1}{9}

of their sum. Their LCM is = ?

Select an option to see the answer and solution.

Q123

The number nearest to 43582 divisible by each of 25, 50 and 75 is = ?

Select an option to see the answer and solution.

Q124

A milk vendor has 21 litres of cow milk, 42 litres of toned milk and 63 litres of double toned milk. If he wants to pack them in cans, so that each can contains same litres of milk and does not want to mix any two kinds of milk in a can, then the least number of cans required is = ?

Select an option to see the answer and solution.

Q125

The HCF (GCD) of a, b is 12, a, b are positive integers and a > b > 12. The smallest values of (a, b) are respectively ?

Select an option to see the answer and solution.

Q126

Product of two co-prime numbers is 117. Then their LCM is = ?

Select an option to see the answer and solution.

Q127

The least number which when increased by 5 is divisible by each one of 24, 32, 36 and 54 is = ?

Select an option to see the answer and solution.

Q128

What is the greatest number of 3 digits which when divided by 6, 9 and 12 leaves a remainder of 3 in each case ?

Select an option to see the answer and solution.

Q129

Five bells begin to toll together and toll respectively at intervals of 6, 7, 8, 9 and 12 seconds. After how many seconds will they toll together again ?

Select an option to see the answer and solution.

Q130

The least number which when divided by 6, 9, 12, 15, 18 leaves the same remainder 2 in each case is = ?

Select an option to see the answer and solution.

Q131

The HCF of x⁶ - 1 and x⁴ + 2x³ - 2x¹ - 1 is = ?

Select an option to see the answer and solution.

Q132

Find the least number which when divided by 12, leaves a remainder of 7; when divided by 15, leaves a remainder of 10 and when divided by 16, leaves a remainder of 11 = ?

Select an option to see the answer and solution.

Q133

Find the least multiple of 23, which when divided by 18, 21 and 24 leaves remainders 7, 10 and 13 respectively = ?

Select an option to see the answer and solution.

Q134

Find the greatest number of 4 digits which when divided by 4, 5, 6, 7 and 8 leaves 1, 2, 3, 4 and 5 as remainders = ?

Select an option to see the answer and solution.

Q135

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

Select an option to see the answer and solution.

Q136

Let x be the last number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case but when divided by 9 leaves remainder 0, the sum of digits of x is = ?

Select an option to see the answer and solution.

Q137

A number when divided by 361 gives remainder 47. When the same number is divided by 19 then find the remainder ?

Select an option to see the answer and solution.

Q138

The least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is = ?

Select an option to see the answer and solution.

Q139

A gardener has to plant trees in rows containing equal number of trees. If he plants in rows of 6, 8, 10 or 12 then five trees are left unplanted. But if he plants in rows of 13 trees each, then no tree is left. What is the number of trees that the gardener plants ?

Select an option to see the answer and solution.

Q140

When Seeta made necklaces of either 16 beads, 20 beads or 36 beads, not a single bead was left over. What could be the least number of beads Seeta had = ?

Select an option to see the answer and solution.

Prev 5 6 7 8 9 Next