Welcome to your Junior Teacher Practice Set-9(Math)
This practice set contains 29 question .
Practice Set କେମିତି ଲଗିଲା comment ରେ ଜଣାଅ
1.
If 3 is the least prime factor of number a and 7 is the least prime factor of number b, then the least prime factor of a + b, is
2.
The smallest number by which √27 should be multiplied so as to get a rational number is
3.
If n is a natural number, then exactly one of numbers n, n + 2 and n + 1 must be a multiple of
4.
The LCM of 2.5, 0.5 and 0.175 is
5.
The LCM of two numbersls 1200. Which of the following cannot be their HCF ?
6.
For any positive integer a and b, there exist unique integers q and r such that a = 3q + r, where r must satisfy.
7.
If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a =
8.
The decimal expansion of n is
9.
The LCM and HCF of two rational numbers are equal, then the numbers must be
10.
The sum of the exponents of the prime factors in the prime factorisation of 196, is
11.
The decimal expansion of 178 will terminate after how many places of decimals?
12.
If HCF (26, 169) = 13, then LCM (26, 169) =
13.
If the sum of LCM and HCF of two numbers is 1260 and their LCM is 900 more than their HCF, then the product of two numbers is
14.
If A = 2n + 13, B = n + 7 where n is a natural number then HCF of A and B
15.
The exponent of 2 in the prime factorisation of 144, is
16.
For some integer m, every even integer is of the form
17.
Given that LCM of (91, 26) = 182 then HCF (91, 26) is
18.
The largest number which divides 70 and 125, leaving remainders 5 and 8, respectively, is
19.
Euclid’s division lemma states that for two positive integers a and b, there exist unique integers q and r such that a = bq + r, where r must satisfy
20.
If HCF (a, b) = 12 and a × b = 1800 then LCM (a, b) is
21.
If HCF of 55 and 99 is expressible in the form 55 m – 99, then the value of m:
22.
Which of the following rational numbers have terminating decimal ?
23.
The smallest rational number by which 1/3 should be multiplied so that its decimal expansion terminates after one place of decimal, is
24.
For some integer q, every odd integer is of the form
25.
If the LCM of 12 and 42 is 10 m + 4 then the value of m is
26.
The remainder when the square of any prime number greater than 3 is divided by 6, is
27.
The decimal expansion of the rational number 14587/1250 will terminate after:
28.
The HCF of 95 and 152, is
29.
The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is
