The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is__________?
A. 1439
B. 1440
C. 1459
D. 1449
Explanation:
LCM = 1440
1440 – 1 = 1439
A. 1439
B. 1440
C. 1459
D. 1449
Explanation:
LCM = 1440
1440 – 1 = 1439
A. 10085
B. 10080
C. 10075
D. 10070
Explanation:
144) 10000 (69
9936
——–
64
10000 + 144 – 64 = 10080
The least number of five digits that have 144 their HCF is__________? Read More »
Mathematics Mcqs, Problems on L.C.M and H.C.F A. 9930
B. 9903
C. 9935
D. 9936
Explanation:
144) 9999 (69
9936
——–
63
9999 – 63 = 9936
The greatest number of four digits that have 144 for their HCF is___________? Read More »
Mathematics Mcqs, Problems on L.C.M and H.C.F A. 1080
B. 1085
C. 1075
D. 1095
LCM = 120
120) 1000 (8
960
——-
40
1000 + 120 – 40 = 1080
The least number of four digits which is divisible by 4, 6, 8 and 10 is_________? Read More »
Mathematics Mcqs, Problems on L.C.M and H.C.F A. 90730
B. 90725
C. 90715
D. 90720
Explanation:
LCM = 10080
10080) 99999 (8
90720
———
9279
99999 – 9279 = 90720
A. (36,60)
B. (12,180)
C. (96,25)
D. (72,30)
The product of two digits number is 2160 and their HCF is 12. The numbers are________? Read More »
Mathematics Mcqs, Problems on L.C.M and H.C.F A. 246 seconds
B. 242 seconds
C. 240 seconds
D. 243 seconds
A. 1267
B. 1265
C. 1261
D. 68
Explanation:
LCM = 1260
1260 + 7 = 1267
A. 71
B. 70
C. 69
D. 68
Explanation:
LCM = 72
72 – 3 = 69
The least number which when add 3 to it, completely divided 8, 12 and 18 is_______? Read More »
Mathematics Mcqs, Problems on L.C.M and H.C.F A. 71
B. 70
C. 69
D. 51
Explanation:
LCM = 48 + 3 = 51