MCQ
Jai, Veeru and Dhanno are friends and they have 3 numbers 2a, 4a and 8a respectively. Find the LCM of their numbers.
Option: A
2a
Option: B
4a
Option: C
8a
Option: D
16a
Find the LCM of 1/3, 2/9, 5/6 and 4/27.
Option: A
10/3
Option: B
20/3
Option: C
3/10
Option: D
3/20
Find the HCF of 1/2 and 3/4.
Option: A
1/3
Option: B
1/4
Option: C
4/3
Option: D
2/3
The product of two coprime numbers is 117. Find their LCM.
Option: A
117
Option: B
111
Option: C
171
Option: D
None of these
If the HCF of two numbers is 8 then which of the following can never be their LCM.
Option: A
60
Option: B
48
Option: C
56
Option: D
24
Rocky has two numbers in the ratio 3:4. Find the LCM if their HCF is 4.
Option: A
12
Option: B
24
Option: C
36
Option: D
48
Jai and Veeru are running in opposite direction on a circular path at Eden Garden, Calcutta. Jai takes 5 minutes while Veeru takes 6 minutes to complete a lap. If they decided to run 6 laps then find the number of time they will cross each other.
Option: A
1
Option: B
2
Option: C
3
Option: D
4
Find the greatest 3 digit number which when divided by 6, 9 and 12 leaves 3 as remainder in each case.
Option: A
965
Option: B
975
Option: C
985
Option: D
995
Find the least number which when divided by 12, 16 and 18 leaves 5 as remainder in each case.
Option: A
148
Option: B
149
Option: C
150
Option: D
151
Find the HCF of (x4 - y4) and (x6 - y6).
Option: A
x4 - y4
Option: B
x3 - y3
Option: C
x2 - y2
Option: D
x - y
Express 252 as a product of primes
Option: A
2x3x3x3x7
Option: B
2x2x2x3x7
Option: C
3x3x3x3x7
Option: D
2x2x3x3x7
Express 1095/1168 in simplest form
Option: A
17/26
Option: B
25/26
Option: C
15/16
Option: D
13/16
Find the HCF of 3x5x7x11, 2x2x2x2x3x3x5x5x5x7 and 2x2x2x3x3x3x5x5x7x7
Option: A
105
Option: B
27720
Option: C
2310
Option: D
1155
Find the HCF of
4x27x3125, 5x11x16x49x81 and 7x8x9x25
Option: A
1260
Option: B
540
Option: C
180
Option: D
360
Find the LCM of 24, 36 and 40
Option: A
120
Option: B
240
Option: C
360
Option: D
480
Find the LCM of 22, 54, 108, 135 and 198
Option: A
330
Option: B
1980
Option: C
5940
Option: D
11880
Find GCD of 0.36, 0.9 and 1.08
Option: A
0.18
Option: B
0.90
Option: C
0.108
Option: D
0.27
Find the value of X if HCF of X, 3240 and 3600 is 36 and their LCM is 24x35x52x72
Option: A
22x35x72
Option: B
25x52x72
Option: C
23x35x72
Option: D
22x53x72
Find the three numbers if they are in the ratio 1:2:3 and their HCF is 12
Option: A
10, 20, 30
Option: B
12, 24, 36
Option: C
4, 8, 12
Option: D
5, 10, 15
Find the LCM if two numbers are in the ratio 3:4 and their HCF is 4
Option: A
12
Option: B
48
Option: C
16
Option: D
24
If AxB = 4107 and HCF of A and B is 37, then find the geater number
Option: A
111
Option: B
185
Option: C
107
Option: D
101
Three numbers are coprime to each other and the product of the first two is 551 and the product of the last two is 1073 then find the sum of the three numbers.
Option: A
81
Option: B
85
Option: C
75
Option: D
89
Find the sum of two numbers if they are in the ratio 2:3 and their LCM is 48
Option: A
28
Option: B
64
Option: C
40
Option: D
32
Find the HCF of three numbers if they are in the ratio 3:4:5 and their LCM is 2400
Option: A
200
Option: B
40
Option: C
80
Option: D
120
Find the value of X if LCM of X and 275 is 7700 and HCF of X and 275 is 11.
Option: A
318
Option: B
308
Option: C
283
Option: D
279
Two numbers are in the ratio 1:4 and their HCF and LCM are 84 and 21 respectively. Find the greater number.
Option: A
108
Option: B
84
Option: C
48
Option: D
12
Find the difference if the sum of two numbers is 10 and their HCF and LCM are 5 and 495 respectively.
Option: A
10
Option: B
46
Option: C
70
Option: D
90
Find the LCM if product of two co-prime numbers is 117
Option: A
Cannot be found
Option: B
Equal to their HCF
Option: C
1
Option: D
117
If x and y are two prime numbers such that x>y and LCM of x and y is 161. Then find the value of 3y-x
Option: A
1
Option: B
2
Option: C
-1
Option: D
-2
Which of the following can never be the LCM of two numbers if their HCF is equal to 8
Option: A
48
Option: B
60
Option: C
24
Option: D
56
The greatest possible length which can be used to exactly measure the lengths 12m 95cm, 7m and 3m 85cm is
Option: A
45cm
Option: B
35cm
Option: C
25cm
Option: D
15cm
There are 1001 pens and 910 pencils and you have to find the maximum number of students to distribute these pens and pencils in such a way that each student gets same number of pens and same number of pencils.
Option: A
1001
Option: B
910
Option: C
1911
Option: D
91
A rectangular steel sheet 3.78m long and 5.25m wide is to be cut into square pieces, each of same size. Find the largest size of the piece which could be cut.
Option: A
21cm
Option: B
42cm
Option: C
14cm
Option: D
None of these
Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
Option: A
4
Option: B
9
Option: C
7
Option: D
13
Find the greatest number which on dividing 1657 and 2037 leaves remainder 6 and 5 respectively.
Option: A
305
Option: B
123
Option: C
235
Option: D
127
Find the greatest number of 4 digits which is divisible by 15, 25, 40 and 75
Option: A
9000
Option: B
9400
Option: C
9600
Option: D
9800
Find the least number which should be added to 2497 so that the sum is exactly divisible by 3,4,5 and 6.
Option: A
3
Option: B
13
Option: C
23
Option: D
33
Find the least number which when divided by 12, 15, 20 and 54 leaves 8 as remainder in each case.
Option: A
504
Option: B
536
Option: C
544
Option: D
548